Top Search Engine Marketing ToolsAaron Wall is a search engine optimization consultant at Clientside SEM and the author of the SEO Book blog. Aaron lives in Oakland, California. This time he takes a look at the top SEO tools. The number of internet marketing tools launched over the past couple years has been staggering. Many of them are both free and highly valuable. SEO, which was once considered a bit of a seedy niche, has grow
