Web Directories: If you have made site its time to submit it to directory. Do this work slow and in long term because getting lot of backlinks in short time is not good for search engines. They will ast your site as a spam and your site will get chances to get banned from search engines.

1.Free directories: This are free or open directories where you can submit you sites for free.
Some Examples of these type of directries with PageRank-

http://www.dmoz.org 9
http://www.lii.org/pub/htdocs/home.htm 8
http://www.femina.com 7
http://www.gogreece.com 7
http://www.sacentral.sa.gov.au/site/page.cfm 7
http://www.worldhot.com/ 7
http://www.123india.com 7
http://www.elib.org/ 7
http://www.ezilon.com/ 6
http://www.epooch.com/ 6
http://www.christiansunite.com/ 6
http://www.toronto1.biz/ 6
http://www.canadianeh.com 6
http://www.aardvark.co.za 6
http://www.nzs.com/ 6
http://www.aigam.com/

2. Reciprocal Link Directories.
This is type of directories where you have to link back to directory. Its like link exchange.

Social Bookmarking Sites
For those who are new to it, in social bookmarking system, users store lists of Internet resources, which they find useful. These lists are accessible to the public for their views and comments. This became a great seo technique now

http://www.furl.net/
http://blogmarks.net/
http://www.clipmarks.com/
http://del.icio.us/
http://www.digg.com/
http://www.fark.com/
http://www.dzone.com/
http://www.blinklist.com/
http://www.connectedy.com/
http://www.backflip.com/
http://www.bmaccess.net/
http://www.bookmarktracker.com/
http://buddymarks.com/
http://www.butterflyproject.nl/
https://www.chipmark.com/
http://feedmarker.com/
http://www.i89.us/
http://www.jots.com/
http://linkatopia.com/
http://www.indiamarks.com/
http://www.sphere.com/
http://www.listible.com/
http://ma.gnolia.com/
http://www.metafilter.com/
http://reddit.com/
http://www.shoutwire.com/
http://reviews.stumbleupon.com/
http://www.techtagg.com/
http://www.videobomb.com/
http://www.bookmark-manager.com/
http://diggdot.us/
http://www.simpy.com/
http://www.spurl.net/
http://saysaid.com

I advised to use Both.

Many Directories ask for a reciprocal link when you submit your site to them. But the end they do not list your site or blog to their directory. They make their own good PageRank on search engine by getting one way link (inbound link) from your sites.

Sometimes its not possible to check all directory that they are linking back to you or not.

Some Tips:
1. Always check each directory you submit your site for link back.
2. Before submiting your site don't forget to check that direcotry is not banned by search engines.
3. Submit your site in proper category.
4. Try to submit on directories that have higher pagerank.

1. DMOZ
www.DMOZ.org
This is the granddaddy of all directories, and is greatly respected by Google and the all other search engines. Listings in this direcotry are free, but you have to wait for your site to be listed. According to the DMOZ site, expect your site to appear in the listings at Google, AOL and other major engines about 2 weeks after you are listed in DMOZ.

2. Yahoo
http://submit.search.yahoo.com/free/request
The name known to all. This free listing form may take a lonk time(months)to result in a link back to your site, but it is well worth a try this.

3. Zeal
www.zeal.com
A free listing just need to register. Zeal is owned by Looksmart.

4. Directory World
www.directoryworld.net
Requires a reciprocal link to their site, but is otherwise free. Good page ranks for all listing pages inside.

5.Really First
www.reallyfirst.com
This is one of the largest directories on web with over 50,000 links. Very poor navigation, but a free link if you add their link to your site.

This is just strating. Submit as many directoried you can. Remember lisiting to these site help you get get good pagerank, traffic and also improve your serch engine listing.