How many of you are using Twellow.com, an yellow page of Tweeters? It is a directory Tweeters arranged under every possible category.
While creating your profile, you can list all your social media contact information that include FriendFeed, Mixx, Delicious and so on.
As soon as you permit Twellow to access your Twitter profile, it brings back a lot of your information which is then automatically included in your Twellow profile. All the links in your Twellow profile are do follow.
See the screenshot below. The blue highlights are 'do follow' links.
Twellow is very useful to get targeted followers and you too can follow Tweeters who are in your niches.
Twellow navigation is very friendly at every stage while searching the directory or while editing your profile.
You can make use of Twellow in many ways to increase your brand awareness. Use it first to promote your blogs and get a free oneway, do follow backlink.