Google drops me after 2 years from page one and reduces my PR to 4?

Google drops me for no apparent reason?

[scoobysteve]

I have had a great serps of between 1-5 on about 30 key phrases on my large 300 page website with all pages having at least PR4 and the index with PR5. About a week ago I dropped to about pos 80 on the index and off the scale on the rest. Yahoo and Alltheweb are still showing pos 1-3 on all phrases. I have been adding relevant links every week and my back link count has not increased with google currently 94 and not shifting Yahoo and MSN are over 1,000 and increasing with links. Is there any reason why I shouldbe hit this hard. Any help would be appreciated. Thanks in advance Steve

[Newman]

Just one thing. Our PR 5 is the same as before.

We can't find the reason... Maybe someone can tell us...

[scoobysteve]

Hi all thanks for the input I have just found out the Google have just done something recently called Jagger that has dropped sites worldwide so those that have suffered may want to look into it. Steve

[Deester]

Hi all thanks for the input I have just found out the Google have just done something recently called Jagger that has dropped sites worldwide so those that have suffered may want to look into it. Steve

Yes, the Jagger update. My site survived J1, J2 and I thought J3. I read a post from GG just after J3 was onto 1 or two DC's saying that if your site is still up now (my site was at the time) you should have nothing to worry about. Well, it seems not. My site was dropped, not just in rankings but certain pages have been removed from the index.

I feel google is a bit random these days!