Hello friends, I am working on one of the website whose keywords were within 3 page of Google till last week when I started doing link building. But today when I checked the keyword positioning all the keywords were down and they were on the 6th and 7th page. I was really shocked to see this... please help me...I am building the relevant links and not doing over link building... Waiting for your suggestion. Thanks
Your site may have got penalized by Google for some reasons like not following Google's Webmasters Guidelines.
also related to panda update.. your site might link to other that also slap with panda update.. google is more on quality, so if one site decrease its quality then other site that have link on it is affected..
Maybe it's just Google Dance. Continue your link building without going for spamming blogs or using xrummer or any other automated software.
Check this thread. Many quality websites have been hit by recent Google update. http://forums.digitalpoint.com/showthread.php?t=2152454
Sometime Google dance with your keywords. So do not need to worry. And keep a proper balance in your SEO tactics & be continuous. Social bookmarking, forum posting etc. are very effective to rank & maintain your keywords in SERPs.
Yes, now a days, social bookmarking has become a norm for website promotion. Further, have your own blog and update it regularly with related news, events, and product updates.
Google prefers fresh content so blog is always a good way of doing this.Article submission and guest blogging is another powerful way that help in SERP.
It can be google dance as well have to be very careful while link building if u come across some low quality site that also can be reason for this.