I am starting a website which will service the real estate community and wanted to know if this is what would be considered a valid backlink. If you visit this link to trulia(dot)com hxxp://www.trulia.com/voices/blogs/ you will see that comments are permitted in each of the various real estate blogs. If I added a comment which had a link to my domain...is this what is considered a valid backlink? I Googled the keyword "real estate" and saw that Trulia seemed to be the one website which ranked closest to the top of the search results and also had the ability for a schmoe like me to add a link. Additionally if I created multiple comments with unique content on various blog comment areas of the website, does this count as multiple valid backlinks? Or do I need to actually be a blog creator for Google to consider my link a valid backlink? Thanks guys....its a slow learning curve and I appreciate all the help that the members of BHW provides.