SEO is no different than any other challenge faced by bloggers. If there is a need, you will find a variety of WordPress plugins created expressly to  solve the problem. As is also the case with other WordPress topics, not everything available is of equal quality. The Yoast WordPress SEO Plugin is probably the best of the WordPress SEO plugins.

One of the reasons for that arre the depth of settings avaiable to you when setting up the plugin. All the choices can be very confusing if you are not already used to doing SEO work. The video below by Steve Wiideman does an exemplary job of explaining all the various options and suggesting some settings based on his experience.

The video is presented in a step-by-step format and is easy to follow. Even if you have some SEO experience you will probably enjoy the way Wiideman explains what the various options in the plugin will do. This is very worthwhile to watch if you are trying to set up this plugin, and not bad even if you use another plugin as you might get a better understanding of SEO in general from the video.

http://www.youtube.com/watch?v=QOjY4LVoghE&feature=youtube_gdata