You know apart from different search engines, communities and other sites there are many traffic exchange sources that can increase traffic for your blog. These sites exchange traffic between bloggers. I use services like Blog Upp, Blog Rush and Entrecard for this blog.[...]

The concept is simple you help other bloggers and others help you in attracting traffic. However Blog Rush has not been so good for this blog but the traffic it gets to your blog is highly targeted. After signing up for BlogRush they ask you to put a widget on your blog and it is this widget due to which traffic comes.
BlogUpp does not need any registration. You just enter your blog’s URL and they give you a code for widget to put on your blog. This widget shows the latest appearance of “almost similar blogs” after the last time they were edited. Just like this your blog also appears in different other blogs. Blog Upp has been attracting a lot of visitors for Blog-o-Ninja; however the traffic is not much targeted.
Another one use I use, Entrecard, is attracting many bloggers as a source of good traffic. Entrecard also does good job for this blog. Entrecard not only allows you to earn credits by dropping your cards on someone’s blog and when someone drops a card on your blogs but also they give you credit when other bloggers advertise on your blog. You can use these credits to advertise on other blogs.
Another good traffic exchange service can be Spottt; however I have not yet used it.