Wordle makes a tag cloud out of any site with an RSS feed, and there are many different color-schemes and designs to try on. You can make a cloud of your Twitter posts or del.icio.us tags. Here's the Everything and Nothing Wordle.
Some of the most thoughtful proponents of tagging have started a blog called You're it! to discuss the uses and issues around tagging. Tagging services allow people to put a label or give a keyword to all kinds of objects, whether they're photos at Flickr or URL links at del.icio.us. (via Blogspotting)
MyJeeves added several enhancements including an option to add your own "tags" to any item. To do this, save an image or web page and then click the "modify" link next to the entry on your MyJeeves "Save Results" pages. You'll then find a box labeled "tags" to add your metadata. (via SearchEngineWatch)
My April Fool's Web hoax, which I was entirely too lazy to actually do, was going to be to create a fake Micropersuasion blog, aptly called Macropersuasion.com. (I even checked - it was available.) I haven't yet figured out exactly what macropersuasion.com will be - maybe the site can rent out a big guy named Bruno do to your "persuading" for you or something. Who knows what I'll come up with by April 1, 2006. (There's always next year, right?)
Link - Joshua Schachter used to be a lot like the rest of us online. When he surfed the Web, he'd zip through interesting articles only to find that days later he couldn't remember where he had seen the stories or sites that had caught his interest. Unlike most of us, though, the 30-year-old New Yorker is a software programmer -- so he did something about this lapse in memory. A little over two years ago, Schachter created a program that let him tag Web links using words he would remember and then store them for easy access. So when Schachter saw a story about, say, the music videos of Icelandic singer Bjork, he would slap a "music" tag on it and file it away. At the end of 2003, Schachter opened a Web site, del.icio.us, to let anyone use the technology.