It’s been months since one of my site on Blogspot, freeavatarsdownload.blogspot.com, sandboxed by Google. Reason? Not sure. But there are three suspects:
- Too few content (text) on each post
- Not much originality on the meta side — blame it on blogspot
- Error on the sitemap (as notified by Google Webmaster Tools) — again, blame it on blogspot
On the brighter side, visitors still coming, mostly from Google Image Search.
Now, let’s try to bring my other “doorway page” for free avatars download to the first page of Google 
on number 3 , that absolutely your right
My blogspot blog has also been sandboxed. I don’t know how to get it out of there. Should I just leave it forever? Any suggestion?
you can try adding more backlinks to your site first. It doesn’t guarantee that your site will be out from sandbox, but sometimes it works.
i read somewhere that for sitemap you can use http://yoursite.blogspot.com/atom.xml as your sitemap. you could try that
Thanks mr. cosa, I ve already implemented your tips. I also sent Google an email asking for reconsideration for that blog. And now that blog has come out from that sandbox. It really works!
Why your post google is very small???