I have yet to officially make it to a SXSW web conference, not because of the lack of desire, but resources both time and financial.  Last year, some of my favorite posts were on the business cards that were collected: get a bunch of designers together and you can easily and simply expect that the friendly showmanship between designers, coders, architects, and others certainly raises the bar on what’s expected when you reach to give a business card.  Shaun Inman is of the same belief and has noted his findings, so go read and enjoy.