Like all denizens of the Interwubz I have, over the course of several years, collected records of everything I've read, touched, looked at, linked to, discussed, commented on, or visited - the sticky trail of webby spoor that will undoubtedly follow me for the rest of my life.
I back up bookmarks at Delicious, Google bookmarks, and locally, both in my browser and in big HTML gloms in my weekly monthly backups.
The other day when I did this I realised that the blog of Scottish science fiction writer Ken MacLeod was not included in any of my bookmarks! I realised that over the years I've been reading his excellent weblog I've simply got into the habit of (I've never liked RSS aggregators - I've tried FeedDemon but found it deeply unsatisying somehow) clicking through when I visited Charles Stross' similarly excellent weblog.
It occurs to me that this behaviour can act as a kind of litmus test for genuinely excellent online stuff.
If you care enough about something to remember it without creating a link on your desktop or browser then it's almost certainly worthwhile.
Called it the nolinkvisit rule.