My blog was indexed by google with in 4 days. I just submited my url to google and then kept on posing and pinging my blog every day. I have 50 pages indexed so far... you might wanna try this
You must be using some black hat type tricks to get google rankings, so you ar e punished. Give me URL i will give you full report.
It shows that google has deindexed your site, create a sitemap and submit it to google webmaster central. coz sitemap plays a important role to get indexing your site. I am sure that u have done something to your site that google didn't liked and deindexed your site.
You have been sandboxed, and there many possibilities why that happened. You might have linked with bad neighborhood in the past, or might be because of duplicate content issue.
what is called (in IM circles) the "Google Dance" has plagued many of us... I had one site that through some serious effort was brought to page 1 of google, then suddenly it disappeared. To this day I'm not sure why or what I did. What you must do is continue your efforts and also realize that there are other search engines, not as powerful, but lumped together they can bring you a ton of traffic. Keep at it, don't be discouraged and see if you can learn from your efforts and do even better in the future.