Well my blog wasn't a complete fail, yet it didn't receive the hits and serps I expected. Domain junk: Domain: www.mysql5tutorial.com Question: Is it better to have www or no www? Keywords: MySQL, MySQL 5, Tutorials, Articles, MySQL Tutorials, MySQL Articles, MySQL 5 Tutorials, MySQL 5 Articles, Tutorials, Articles I know i need to build back links on websites that are related to my niche <going to be very easy. BUT: Question: What about web directories, how do I know what category to choose from? The categories aren't as detailed as people would think. Software: Wordpress latest If you can answer the questions above and post some extra seo tips and resources to follow that would be very helpful thank you in advanced.
It doesn't matter, choose one that you like better and 301 redirect the other one to it. This is a cosmetic question, not a SEO question. You want to build "quality relevant" backlinks, and I'll be the first to say web directories are usually far from relevant and no where near quality. They have thousands to hundreds of thousands of outbound links diluting the link value for each web page providing backlinks to sites.
Stymiee's SEO Faq over at sitepoint is a good resource to start at. Also, by SEO knowledge database in my signature should do you some justice. Since your using wordpress you'll want to also review Dan Schulz's Wordpress SEO Checklist.