I took the challenge for Thing 10 and created a wiki using pbwiki.com. Check it out and post a message! It's not very sophisticated, but at least I tried! Here's the link to my wiki:
I created this wiki, added a logo and edited the layout. The only thing I couldn't figure out was how to insert a picture into my comment. I was able to format the font and add a picture on the "23 Things" wiki, but couldn't figure out how to make these options available on my wiki. I wonder if this is an "upgrade" feature. I also plan on e-mailing the link to my wiki to some friends and family tonight. We'll see if anyone actually visits my wiki!