Focusing on Search Engine Marketing and the world of search engines including observations on search engine optimization, research, news and commentary. Search Innovation Marketing Blog is written by Daria Goetsch, founder and search engine marketing consultant for Search Innovation Marketing. Daria has been involved in search engine optimization since 1998. Visit http://www.searchinnovation.com
Another great link building article by Ann Smarty of Search Engine Journal. Gives some good guidelines and tool links for examining your competitor's external links:
Backlink Research : Essential Checklist
