A new column devoted to the less-than-celebrated world of tech mixers, drinkups, LAN parties and other events for nerds and by nerds. Nothing says that computer junkies have to be anti-social! Monday: The penguin army descends on the Moscone Center for the LinuxWorld Conference and Expo. Come celebrate open source operating systems, gripe about hardware support issues, and make unflattering comments about the BSD kernel. Also, Web Monday, a regular event for web developers in......