While the for: tag is well known among delicious users (and specifically supported by delicious), some delicious users use the via: tag to track who provided a link. That allows people browsing your links to know who else they might want to add to their network on del.icio.us. Ric Hayman of Aqualung proposes that this could form the basis for a reputation economy online.
Group Bookmarks tagged tips
Maggie Tsai (275)
Mah Saito (105)
Dr. Fridemar Pache (17)
Wade Ren (14)
jincheng li (12)