i made a post 2 days back which brought really good traffic from google and the next day it was not in google serps i dont know why is that so and then i checked some of my other posts got deindexed too. What can be the problem ...i m doing proper link building and submission to directories.. and everything
Could be a few things... hard to say without seeing the website. BUT... as a general rule of thumb: 1) New websites often see pages come in and out of Google. 2) If you build some links to the post in questions this should help.
Posts don't get deindexed unless penalty is imposed. However, since your post is still new, there might be a chance whereby new page are given temporary boost in SERP and appear high in Google search and later drop in ranking.
Actually post can get deindexed... it all depends on how his website is set up. There are many issues with duplicate content with blogs. There are some optmization steps that can be taking. Another issue is how the archieves are set up. As the pages get pushed down sometimes Google doesn't think it's that important. example: Home Page >>> Category >>> catgeory page 2 >>> catgeory page 3 As you can see once the post gets this far the link is four pages down from the homepage. Now this page isn't that important unless you have links pointing to it.