Here is the list of these Top 10 resources.
http://digg.com/
http://netscape.com/
http://ezinearticles.com/
http://del.icio.us/
http://www.stumbleupon.com/
http://reddit.com/
http://slashdot.org/
http://blinklist.com
http://furl.net/
http://squidoo.com/
You can use them to post your hot topic to get some traffic as well as the links to your blog. Also some of them like squidoo.com give you your own page to promote the things.
