Indexing topics on this site

I added a new feature to this site today: categories for the posts. Although Blogger doesn't allow me to create categories, I set up a somewhat clunky workaround. I created a del.icio.us account and tagged all my posts. If you click the del.icio.us/digitalreference link on the right under "Categories" (assuming you are not reading this in your aggregator) you'll see all the tags I created. There are posts that have been tagged on things such as:

• cooperative_reference
• reference_interaction
• SMS_reference

Caveat lector:

• I am not a cataloger or an indexer. Expect some idiosyncratic tagging here (your comments are encouraged).
  
• I'm likely to add tags to posts already tagged to increase access to my postings (your suggestions are welcomed).

I had been debating whether or not I wanted to go to the trouble of setting all of this up. In poring over the site statistics lately, though, I realized that many of the more popular posts were ones I wrote months ago. There seem to be a fair number of new readers who first come to this blog via an older posting that was found in a web search or that was linked to from some other site. I can't assume that anyone other than my most devoted readers (Hi Mom!) have been following my posts since I launched this blog last year. So for those of you new to the blog, consider the categories an easy way to see what I've already written about and to access those topics of interest to you.