aleksl - 2:53 pm on Jun 8, 2010 (gmt 0) [edited by: aleksl at 2:55 pm (utc) on Jun 8, 2010]
I'll report some bizzare results here:
1. we've lost 30% of our traffic on eCommerce site, and 50% sales (hence traffic we still get is less targeted).
What I see in serps is that #1 spots (and quite often #1 and 2) gets a website which is one of the larger competitors (granted) but uses spammy descriptions everywhere. Every widget on their site is described like that "green widget 12345, green 12345 widget is a great widget for gadgets. gadget widget 12345 can be used both at home and in office. the widget 12345 lasts N years. green widgets are great. if you buy 12345 green widget's replacement gadget, you can look here." etc. These are all bunch of border line spammy synonyms. And that site now gets #1 spot.
2. Our non-commercial web portal has seen no changes in traffic. It has a large number of pages, hundreds of thousands. it'll take more research to see if keyword pattern shifted, and I doubt I'll be looking into this unless its income dramatically falls, which I don't see either.
A side note:
Wikipedia shouldn't really be in top 10 for every search. Just tell everyone to search for "keyword wiki" to get it, don't see a reason for it to be there (besides leaving less free spots and driving more traffic to ads). It is clearly taking a legitimate spot that website #11 could have had. And I commonly find its info to be inaccurate, which is less case with encyclopedias such as Brittanica.
[edited by: aleksl at 2:55 pm (utc) on Jun 8, 2010]