See the post Protein-Protein (and Postdoc-Postdoc) Interactions at rENNISance woman blog. From that post:
Now that we have all these amazing online social networking tools, maybe we can start forging links to people whose proteins of interest interact with our own. Imagine – a whole new network based on satisfyingly geeky biochemical data. You might even find your next date in this way (100% success rate, n=1). Matt, can we have a new category on the “Your Network” page please?