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.

Domain Names are very cheap these days but many people still can't buy them.

The option is free Subdomain that looks likt domain names.

.tk
You can get your own .tk domain names like my-name.tk
It very easy and pupular but most of search engines don't like this and I don't like it too because it comes with adverstiment.

co.nr

It is also one of best free subdomains servie for your sites.
It Gives you
Free URL Forwarding, also known as Free URL Redirection


Intelligent Free Path Forwarding and Advanced Free META TAGS support

Free URL Cloaking also known as Free URL Masking

No banners or popup ads, actually, NO ANY ADS at all

Ability to use your free domain name with and without WWW, and more


uni.cc

UNI.CC is a free domain name that will help making your web sites more accessible using short and easy-to-remember Internet addresses.
This site provides domain name redirection service and a site builder tool. They do not offer hosting, mail or FTP services at this time.

Available services

Web forwarding
Convert your web site's address from something like
www.provider.com/users/something to www.name.uni.cc

Site builder
Create a complete site in few minutes. No programming or design skills required.

DNS Service
Delegate your UNI.CC domain name like a .com and get all the flexibility you need.


afraid.org
Here you can lot of free subdomain names with full domain control or you can use your own domain.

These days Domains are very cheap. You can get your own domain for 6-7$ per year.
Normaly The Registrar don't give full domain feature. Many of them only provide DNS control. Most of people don't need anything else but some people want more.

If you want to use your domain at blogger you need cname control that normaly registrar don't provide. What you will do?

Lots of option available for free. You can use any services. I am giving you some info about famous services that people mostly use.

www.afraid.org
This is a free service. They have better feature for paid users.
You just need to Point your domian to their Nameserver.

Afraid give good features with good speed but limited.


www.mydomain.com
MyDomain also give domain tools for free. You can register a free account and add as much site you want. All features are unlimited. You can also buy domain from them.