My Old domain (1998) have droped over 500 places for my main keywords few days ago. What I did is I added a lot of links with my main keywords (2000+) in short about of time (2 months). This domain still ranks high for small keywords I've never did SEO for. What do You think, will i get back to top5 or not ?
It could well be a "link-boost" penalty due to being an old domain then suddenly gaiing 2000+ links may have triggered google to throw in a penalty... the only cure for it is time I think, as it will naturally start rising back up serps again. However, not sure on how long before it will rise.