Many people these days still have an artificial understanding of Pagerank and its direct benefit. With that though it’s important that anyone doing on page SEO has an understanding of ways they can be passing their Pagerank without knowing it. In today’s video, Matt Cutts talks about this exact issue. If you don’t want to watch the video I will break the secret and just tell you that Images Do Pass Pagerank.
Make sure the images you have on your website are hosted on your server, otherwise you could be giving others your link juice!On-site SEO