Now that Delicious is going the way of the dodo (everybody tells me so, that's how I know) there are two things I should really start doing here, in my own little space on the interWebs. First, I should start cataloging serious alternatives: lots of people have them. I followed someone's directions and imported all of my Delicious links into Google Bookmarks. It seems a poor alternative thus far, largely because I can now not find my Google Bookmarks page. Nor can I add bookmarks without going to Google Bookmarks. For Delicious, I just pressed Command + D. Viola, permanent record of link forever. (I'm still doing it, and will up until the day they officially pull the plug.) (Which, evidently, they might not.)
Second, I should start using the space to keep track of links I want to keep track of. Well, I've kind of been doing that already. But I should probably, I don't know, do it better or have a better tagging system or something. (An analysis of tags as the most insanely useful, or not, way of organizing information is forthcoming. Some year.)
For example, Nova has a bunch of videos online, like this about Machu Picchu. There are others, I'm sure.