I love the data Google Ad Planner released this week on the top 1000 sites globally. The most vistied site globally is still Facebook with over 540 million uniques users per month. Yahoo takes the second spot for most visits. Again there is a lot of international presence in the top 20 with Baidu being the highest ranked non-US site, attracting over 170 million uniques in May. TrialPay holds the number 1000 spot with 3.8 million uniques. The site list is a great planning resource - but it would be interesting to know which site is making the most money out out of its audience in relation to ad revenue. I'm sure there's been a lot of phone smashing in the ad net and, dare I say it, DSP biz dev departments across the world since the list was published this week. Get dialling now.

The top 20 most visited sites globally, May 2010. Data below includes monthly unique visits and site categories.