Delicious

Delicious is " a social bookmarking service that allows users to tag, save, manage and share web pages from a centralized source. With emphasis on the power of the community, Delicious greatly improves how people discover, remember and share on the Internet". I extensively use(d) it and I think it’s one of the very good tools Yahoo! (its parent company) has to offer on the web for the moment (along with Flickr and the currency converter). I was thus very disappointed to read persisting rumours that Yahoo! will shut down Delicious. And I’m not totally reassured by the official comment from the Delicious blog: " No, we are not shutting down Delicious. While we have determined that there is not a strategic fit at Yahoo!, we believe there is a ideal home for Delicious outside of the company where it can be resourced to the level where it can be competitive". ...

Namechk.com ( Check Username Availability at Multiple Social Networking Sites) bookmarked on delicious.com by Philippe " one possible use of the Facebook profile information: generating a good dictionary from fabebook-names-original.txt to brute-force password" seen on Twitter.com/adulau Now use Namechk to find all combinations of >= 2 letters used on more than 1 service. I guess there is a high probability that two identical username strings on two different services belong to the same physical person. Look at their profile/activities/pages/whatever on the various websites, you have now a wonderfull network of knowledge about these people. I also guess that if a flaw is discovered in one of these services that allows to recover users passwords, you could use the same password on all the other services for the same username. ...