Domain sandboxed in aa strange way - question to experts

Well here is my situation. Maybe somebody had similar, because seems it doesnt work in the new algo like it used too.

1. I had domain on top1 position, i was relaxed wasnt doing anythign with it.
2. One day i saw it dropped to top10, so i kicked a bit links, it went to top5
3. I kept kicking in links and bang.. one day [around 2 weeks ago] i saw it falled to 9th page.
4. I was waiting for a week, then i gave it a bit of links [not too much] it went to 8th page
5. So i decide to kick a bit more links and bring it back to top1, then it fallen to page 11.

Page is fully indexed, ranks on long tails but not on the anchor that it used to be in top2 - its on 11th page now.

What should i do to move it back and what does this looks like? What kind of sandbox is it.

Thanx

How old is your site. It could be the result of a manual review or penalty for "thin affiliate content". Can't really say anything until I have your site age.

Indeed it looks a bit strange that is why i dont know how to react and i really want to bring it back to the top.

Info: Site has over half a year, was top1 for at least 2 months for a competitive keyword

it has PR3 and atm backlinkwathc shows 2500 links

and the rest of story you know.

Any idea what to do ?

How do you build your links...you say you have 2500, but if they're all spammy PR0 blogs, someone with 80 clean PR 5/6 links will beat you. It's possible that the sudden surge in links triggered an automatic filter but it depends on how you built them.

But such a sharp drop looks to me like a manual penalty. Have a look and see if your site jumps through google's quality rating hoops. It's not that hard, you might just need to add a user registration function or a forum or something, just to make the site look a little better. Google regularly performs manual reviews in this way.

Or, alternatively, it could be just a blip, known as the google dance.

Such dance would be too big. And every thing happends too close to me dropping of links. Site has lots of PR0 [like every site] but also quality ones - hence the PR3 from at least 4 months. It is surely not fault of the links that it dropped in ranks [look that after 1 day of adding links it went from 8th page to 11 again!]

After adding some of the pages you mentioned [like contact page etc] should i write anywhere or just wait till bot automaticly fixes everything ?

I know alot about sandboxes and bans but this situation just doesnt fit any usual scenario so need help ;x

Update - went to page 5 from 11, without me doing nothing. [maybe all the links ive dropped were found now?]