Traffic measurements vendors differ widely in results

In an article from Hitwise today, Hitwise used their data to determine that Craigslist had made it to the top of the weekly search results list beating 3 year champ, MySpace.
However, Techcrunch has a very different view based on a look at Google Trends. They rank Craigslist third with Facebook having a huge lead over MySpace. With different sites using different tracking methods, it’s no wonder we’re seeing such varied results. Keep your eyes open.