Over the last few days I've seen a spike in traffic to my site, specifically to my What Is My Flickr Id? tool. After some quick investigation I found the traffic to be coming from RateBeer.com. It took me awhile to figure out where they were linking to me from, but I did. On their profile page, they ask for your Flickr ID, and then they link to my site for those who don't know it. Very cool.