What does YOUR filter look like?

What types of sites end up there, and are there any trends you notice?

[zett]

No, I do not want to see your sites (well, I would like to see them, but Webmasterworld TOS prohibits this.)

But I am quite interested in hearing what general information you gather on the sites in your filter, and how? Are there any noticable trends to be seen? Also considering the June 1st crackdown?

Here are my observations:

I am using an Excel sheet to track my filter. The list is still 100% full (i.e. 200 of 200 slots used), and looking at those 500+ URLs I have unblocked over time, I can safely say that a bigger filter would definitely help. In this case, I would re-insert the unblocked URLs to the filter again, just to be on the safe side.

Over the past four or five weeks, I have seen a strong increase of parked domains being advertised (now approaching 40% of my filter). This seems to have come to a halt this week, though. Summer? Google further cracking down? Have I filtered everyone in my niche? Who knows.

The TLD split looks as follows:
.com 47,5%
.info 15,0%
.net 12,5%
.biz 4,5%
.org 6,5%
other 14,0%

As for the origin countries:
USA 25%
private registration 24%
UK 17%
Canada 13%
Rest of World 21%

What do I filter and why?
- Any "parked" domain I come across
- Any scam or e-mail-harvesting scheme
- Any utterly wrong targeting (e.g. red widgets on a site about green carpets)
- eBay, Blogger, Ask

So, what is your filtering experience?

[timwestla]

I'd also rather not have these junky, deceptive ads lurking on my sites just waiting to disappoint and annoy any of my visitors who happen to click on them.

IMO, that's the best reason to block a site.

[aleksl]

We block:
1. competitors to our main site
2. competitors to our main earning sites (if our main site has a topic that is related...)
3. several very biased political and national extremist sites (err...our main adsense site is an info portal)
4. Arbitrage sites
5. Most CPM ads
6. Several spam schemes, "survey" sites, anything that seems to collect user emails or other info - if these get really annoying.

[netmeg]

I block not-necessarily family friendly ads because I have one site that draws a lot of kids.

Anything with "top" or "5best" or similar terms in the domain name.

Out of date ads (for holidays or events that have already passed - I finally got tired of seeing the ad for the March 2007 wine tasting festival on my site in July)

Anything that looks like a scam.

Anything that says or implies ringtones.

In addition to a larger filter, what I would really like to do is be able to block by site (my sites, I mean). There are ads that I don't mind running on my other sites, but I have to block them because I don't really want them on my family site. But because of the way it works, if I block it for one, I have to block it for all.