Hello,i created a blog and certainly it disappears from the google index..I don't what happened as I did not do any work on it seo related no link building nothing else so why it removed from index..we just adding unique content to it..
Who knows? Any reply you get will be simply a wild guess without your URL so that people can investigate.
Do you see a reason given in google webmaster tools. Usually it may happen because of a bad robots.txt (in your case it's fine) or some error with host. Just check your webmaster tools for any errors.
Out of the 121 links shown in Yahoo! from external sites to pages on your site, about 100+ appear to be directory submissions. At jitendraag, I would check Google Webmaster Tools for clues... And make sure that you have not violated any of Google's Webmaster Guidelines... It would suck to have been banned. Just one thing that looks bad IMO... Your URLs are VERY spammy... Having page names with 4,5,6,7 keywords separated by hypens is one thing... But URLs like the following look like attempts to spam the engines: http://www.xbox360blog.org/games-for-xbox-360/stormrise-stormrise-puts-you-on-the-battlefronts-through-xbox-360-as-the-epic-leader-of-your-fighting-troops http://www.xbox360blog.org/games-for-xbox-360/wwe-legends-of-wrestlemania-combat-through-whole-new-series-of-elements-introduced-into-the-match-and-overcome-your-adversary-in-xbox-360-game http://www.xbox360blog.org/games-for-xbox-360/leisure-suit-larry-box-office-bust-move-with-larry-in-the-pick-up-and-play-open-world-bundled-with-lot-of-comedic-mini-games-on-xbox360-platform