Altavista, 8 years and counting. I seem to remember having some in Mosaic before it changed into Netscape in '94, but can’t recall for certain if you could bookmark then. I know for a fact my first startpage was sn.no (Schibstednett, Norway’s first ISP). They’re sleeping with the fishes now though, so no use having them bookmarked any longer - someone else has taken over the URL.
Reason I remember sn.no so well… I won a trip for two to Paris in one of Schibstednett’s first publicity stunts, but traded the plane tickets with the woman who was runner-up since I was too busy to go at the time. Got me a special sn.no T-shirt in return. Bartering skills so strong. Heheh.
Hmm, Moz didn’t keep any dates when I imported them so I can’t be certain but I’ve kept the same bookmarks list since my senior year in HS, when I first got on the 'net, which would date the oldest to '95. The ones at the top of the unsorted part of the list are Yahoo!, AltaVista, FTP Search v3.5 (absorbed by alltheweb.com and suckified in the process) and the link to my first homepage (now long gone)
This list of bookmarks started life as a Mosiac (may have been an early rev of Netscape that I first bothered with bookmarks) bookmarks file on a Packard Hell 486SX 33mhz box running winders 3.11 and now dwells inside Mozilla 1.3 on a home built 1.4 Ghz Athlon running RedHat Linux.
I’ve owned this bookmark file longer than I’ve owned any vehical, had any relationship outside my family, lived in the same house, or had a job.