In many cases Google and other search engines are not able to see links to your posts from some sites where you submitted your RSS. Here list of best sites which will give you a chance to share your news and all your links will be indexed by search engines. It is the best way to build deep links for your site.
http://www.rss-spider.com/ - Google will be able to see links to most of your blog posts.
http://www.genwi.com/ - your links and posts will be shared with another users.
http://www.zimbio.com/ - good social network which show users links to your posts.
http://feeds2read.net/ - great way to share your blog
http://www.myfeedz.com/ - all best bloggers use this one.
http://outpost-earth.com/ - once i got over 1000 visitors from this site.
http://www.technorati.com/ - you probably already there.
http://www.squidoo.com/ - rank really well on Google.
http://www.mybloglog.com/ - i am surprised if you not there
http://www.blogcatalog.com/ - good alternative for MyBlogLog
http://www.bumpzee.com/ - one of my favorite.
http://www.shoutwire.com/ - similar to Digg social network.
I hope you will enjoy submitting your blog in these social netorks.