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DMOZ keeps a half-dozen or so hot Sun servers busy; someone has to buy and administer them! And there is a variable amount of support (software development, personnel administration, legal) from salaried employees.
Basically the story goes as follows: In former days, Netscape owned a directory created by their paid editors. When the ODP was in need of someone who could supply more server power, Netscape and the ODP joined forces. So the ODP was mostly manned with volunteers and additionally a number of Netscape staff editors.
The benefit for the ODP (additionally to not having to stop because of the costs) was that a number of staff _programmers_ engaged as well. The benefit for Netscape was that they could start reducing their staff. Having something that was previously done by paid personnel now done by volunteers is a lot cheaper ;-)
AOL just bought Netscape some time ago, which included the servers for the ODP. Obviously, they see a benefit from the ODP as well: We had an increase of staff power some time ago and currently some of the slower servers are renewed.
why keeping something which brings nothing back, in a commercial environment.
Looks like the info is coming from the first hand. :)
I still wonder why keeping something which brings nothing back, in a commercial environment.
Two reasons: The will to change something to the better, and in the case of companies, a PR effect (which does not mean Page Rank :) )
Additionally, there is some output the ODP generates: Directory data. Which wouldn't be there without someone paying for the servers. Apart from the benefit AOL can make from using that data, IMHO it reduces the worth of commercial directories a lot. Directories owned by other companies, that is. :-)
Who are the main editors at DMOZ, anyway?
It is, I've heard, "profitable" for AOL. I think it works this way. AOL "needs" a directory (to consider oneself a first-class portal, it's one of the functionality checkboxes you have to tick -- perhaps not the most important requirement, but still one of them.)
You may not have been around the net long enough to remember when Excite, Lycos, Netscape, and AOL all had their own independent professionally-built directories, just like Yahoo still does. All of them together didn't have the number of listings that the ODP has today... and they had problems!
Link rot was rampant. (Robozilla was the first automated directory link-checker; it was months before Yahoo followed suit.)
Professional ignorance plagued the directories -- as should be expected when people with no special knowledge in an area are compelled (by someone else's priorities) to edit there. In an example I remember vividly while mining the Lycos directory, it was obvious that their irreligious or state-church hireling couldn't begin to distinguish between all the flavors of free churches in the States; in another amusing case, an ODP volunteer who is a professional art historian spotted an humorous architecture-parody site that the professional (but Luddite) editor elsewhere had taken seriously.
Into that environment came Looksmart, with plans of charging these folk ten million or so dollars a year for the privilege of using THEIR directory, professionally built by professional librarians -- and, for a brief time, actually GETTING that kind of money. Of course, Looksmart grew rapidly, partly by taking ODP listings without attribution -- I recognized some of my own (poorer) descriptions!
Also into that environment came the ODP, which offered its work for free. And suddenly Looksmart started offering the portals several million dollars a year (ad-revenue sharing) to use its directory. And eventually losing all its customers except Microsoft, whose concern for quality is well known -- and going all-ads, all-the-time, except for Zeal; and finally, dragging Zeal down with it.
The lessons: (1) Building your own directory costs tens of millions of dollars per year, (2) but even then wouldn't match the ODP quality in abstruse areas, so that (3) the ODP, free, is a better bargain than any subsidized alternative so far created. (4) Top-down-management schemes, in addition to their intolerable financial cost, impose a significant limitation on quality far lower than what the unmanaged chaos of the ODP regularly achieves.
These are all economic issues of a sort: but not the kinds of issues webmasters have to deal with, so that it's understandable you'd be puzzled. And, for that matter, it's not the kind of thing EDITORS usually have to worry about -- so long as the servers are up, the surfers are out.
Two reasons: The will to change something to the better, and in the case of companies, a PR effect (which does not mean Page Rank :) )
Hm, let me remind you: this is year 2006.
What change brings any directory listing today?
How many users go to a directory looking for info?
In case of a company: Do you really want me to believe that average Joe knows that AOL owns DMOZ, which in turns provides him with all that carefully selected links for free?
Nobody here has said any such thing, you made it up yourself. I wouldn't recommending believing anything from that source, but I can't stop you.
I'd say the ODP isn't aimed at average Joe (that is, middle school grade levels, or, like most internet advertising, the gullible or ignorant fringe of that). Average Joe doesn't use a card catalog. Average Joe probably doesn't use a library, for that matter.
The ODP is really more like senior high school level: the fringe of people who read for the fun of it as well as out of general curiosity, who browse in bookstores and libraries.
How many users go to a directory looking for info?
How many users go to any given website looking for information?
Google and a few other websites may get a single digit percentage of all web users as visitors.
But most websites -- even ones successful enough for their owners to be buying yachts -- get under one millionth of one percent of the total web traffic on any given day.
If we are counting visitors to data, then there are many millions of websites far less revelant (if we are counting users looking for information as you suggest) than DMOZ.
The ODP is really more like senior high school level: the fringe of people who read for the fun of it as well as out of general curiosity, who browse in bookstores and libraries.
So, DMOZ evolved from a reliable source for masses to a favorite reading for casual above average selective surfer.
"Oh, look: Business: Financial Services: Insurance: Third Party Administrators: => Mycompany.com ¦ Provider of self-funded direct reimbursement dental plans."
Is that why people are so excited by being listed there?
How much traffic an average listed site gets from DMOZ or any other directory compared to search engine referrers?
From the viewpoint of evaluating the worth of DMOZ you are looking at it backwards.
Imagine (I have not idea of the numbers so this is imagination) 10,000 people a day use DMOZ and its licencees and each of them find 5 relevant websites as a result.
That's 50,000 successful searches every day. Far more than most websites do for their visitors.
On the other hand, there are around 5,000,000 sites listed in DMOZ so (all other things being equal, which they aren't), each of those sites could expect a visit from a DMOZ user once every 100 days.
Is that "3.5 referrals a year: useless"? as a webmaster might think
Or "3.5 million happy customers a year: a force for good
in the search industry"? as some DMOZ editors may feel.
Do you wonder why people volunteer their spare time for the red cross? Do you wonder why companies donate large amounts of time/money for charity projects?
As the MST3K writers said, "the right people will get it." And the right people can select themselves: we don't have to go around targeting them.
Because we're rather boring people who enjoy organizing things?
Embarrassing admission: my personal book collection which I have in my home is categorized by subject, and the fiction section is alphabetized by author.
Once a librarian, always a librarian, I guess. But I'm sure each of you spends some of your time doing something other people would laugh at as an unrewarding waste of effort as well. (-:
Plus I don't have to worry about hosting it, dealing with the traffic or the web maintenance, setting up link-checking tools and spam-blockers, etcetera. I keep up a small niche directory for a nonprofit organization I like, so I know how much work it takes to maintain a quality directory. I wouldn't be able to do that in my free time for a topic as broad as "literature," but I like spending some of my free time pitching in on one.
(1) the dmoz.org site would HOST my directory, providing high-quality tools for me to use.
(2) the dmoz.org site would PROMOTE my directory.
(3) the dmoz.org site would attract people who would fill in the niche categories NEAR my directory, thus making my effort part of a more comprehensive collection.
(4) the dmoz.org editors formed "a" community unlike most communities in being both fascinating and fascinatable -- which exceeded most communities in my conception of shared public spirit.
I know that other editors took this same route: even today, the best candidates for ODP editors are those who would be pursuing ODP-like missions on their own even if the ODP had not existed. And there are such people, even though, I grant you, they are rarer than life insurance salesmen or couch potatoes.
...would be pursuing ODP-like missions
Would you remind me and repeat the holy mission, please?
And there are such people, even though, I grant you, they are rarer than life insurance salesmen or couch potatoes.
Yes, all 70,000 of them concentrated on one place, following the mission.
On a more serious note, I appreciate very much (and try to contribute) to the real missionaries, such as php.net, almost the whole linux community, even Wikipedia, etc.
However, today I don't see DMOZ under the "etc" flag.
Because there is more to a community than simply a shared mission. It's inevitable that not everyone can work together -- and it's inevitable that people who have a choice sometimes prefer to work alone, or to start a new community rather than join an existing one.
That's why I was disappointed to see Go and Zeal disappear. They gave different perspectives on the information-cataloging mission. (And when you're looking at very complex objects, multiple perspectives are capable of providing information that a single perspective simply cannot.) They were able to harness the energy of people who weren't willing or able to work within the ODP community or procedures -- and thus feed more resources into the same mission. They gave more options to people who (like me) are interested in that kind of mission. Even though I personally didn't use them, people very much like me did. And so I think their demise was a genuine loss to world culture.
Wikipedia has a worthy goal and an interesting approach to that goal, whether or not I ever use it. (I do, occasionally.) But I don't care to work in that environment. (I'm not going to run down their community, of course, just because I don't know it.) I chose to contribute to other encyclopedia-type projects -- which, of course, have distinct advantages over wikipedia, as well as distinct disadvantages. Multiple perspectives, again, and again A Good Thing.
But actually, it's also A Very Good Thing that most people care about something else more than they care about ANY of your communities -- or any of mine. The world has too many problems, and problems too complex, for one approach, one community, to solve everything.