These RSS directories don't require you to register and some don't even require approval of the rss feed, which means that your feed(and links in it) will be visible on that site instantly.
If you don't have RSS Feed, then you can create one on these great websites:
IceRocket Free RSS Builder
Feedity RSS Feed Generator - Create RSS Feed, Track Website Changes
OK this is the list:
You can use these directories in many ways. To get your blog posts, webpages, backlinks indexed,
to make backlinks to your pages, blog posts and existing backlinks making them even more powerful.
Also by submitting your RSS feeds to these directories you can get backlinks from other websites/blogs if they publish your content.
So you get the idea how important and powerful this can be.
If you have a blog posts/web pages/backlinks(like profile inks, articles, etc.) you want to build backlinks to or just want to get them indexed by main search engines, then this is what to do.
Make a list of your blog posts/web pages/backlinks.
Got to IceRocket Free RSS Builder , create account there.
Then create RSS feed with these blog posts/web pages/backlinks in it(pase it).
If you have very large list, you can split it into few RSS Feeds,
then copy all created feeds and make a list of it,
create another rss feed with these feeds from the list.
Then submit your last feed, which contain all feeds, to these RSS Directories.
Alternatively after you have submitted your feeds and you have the url location of the submitted RSS feed from particular RSS direcotry, then you can ping those URLs to 20 or more ping services/websites with :
My orig post: