On the right side of the page at http://www.chess.com/blog/ you should see "Most recent blog posts". I have checked this and it appears to be updating accordingly.
blog posts not showing on latest blogs

just did http://blog.chess.com/view/test21 and the latest blogs:
Most recent blogs
- Unusual Openings
by NSM2009http://cdn-cssjs.chesscomfiles.com/images/icons/member/diamond.png); margin-left: 4px; background-position: 50% 50%;" title="Premium Member" href="http://www.chess.com/membership.html?c=icon"> - 3 hours ago - Scorpions Sting Again; ICC Kibitzers Hopelessly Confused
by ArizonaScorpionshttp://cdn-cssjs.chesscomfiles.com/images/icons/member/diamond.png); margin-left: 4px; background-position: 50% 50%;" title="Premium Member" href="http://www.chess.com/membership.html?c=icon"> - 7 hours ago - chess.com
by ALEXELJEFE - 8 hours ago - Hearts In The Sand
by falling-upwards - 8 hours ago - Interesting Chess Puzzle
by TDoM - 9 hours ago
Hi, I noticed my blog post do not appear on latest blog posts anymore, is it some spam prevention measure? I must protest if it was, they only have a link at the end and I even say its for helium and to get 1 cent lol