http://www.technewsworld.com/story/54575.html
In cases like the above where you are browsing some of the social networking sites and you find someone who is talking something related to what you are doing and you smell a business opportunity, just use the firefox toolbar extension:- connect it to your crm server, add the lead/contact and that is it!
You have got the details of the guy stored with no hassles! No need to jot it down anywhere in your palmtop or blackberry,etc.