When you have a website or blog it is good that the search engines find your content. Finding your content is not enought though it should list in the top 3 results of the topic you are writing about, if you want people to read it.
Robert Scoble is rebuilding his site from scratch. At this moment his blog on WordPress.com has no styling.
To make a good new start, even when his blog gets lots of visitors, he is aksing out loud what are good resources for SEO and SEM. Search Engine Optimization and Search Engine Marketing or the optimization and marketing of your site for the search engines. Great content alone doesn’t do it.
He asked this question on Friendfeed – which is much better than Twitter for these kind of questions, because the answers are listed just below the question. The question goes back to the top of the FriendFeed timeline as soon as there is a new reply or like. So you can identify interesting topics easily.
The first and many other replies are by the Google expert himself Matt Cutts. So here is a list of sites with the best SEO/SEM info (crowd sourced).