As it turned out, adding blogs to my blogroll happens to be no more difficult than adding links to my link lists (and no less tedious, I might add). So I searched for a few blogs and added them. I even found a few blogs to add when looking to add links. No problem, really.
The first few blogs I added were ones I'd had in my web browsers' bookmark lists, or that were associated with some sites I'd had bookmarked, sometimes for years. Not all of them, but most. Others I pretty much never heard of and just found out about on my search. I'll do more of both in the near future as I build up my blogroll. I'll then do the same for my project blog, and repeat the process on any other blogs I set up anywhere else.
My first lesson in blogrolling was simply how to add one to my blogs. This turned out to be less trouble than I thought, especially once Google added a blogroll option directly to Blogger (or, more accurately, "Blogger in draft"). This takes care of the second lesson. Later, I'll need to learn how to use a blogroll managing service such as BlogRoll.com.
Of course, I still have a lot more to learn. I haven't reached the top of the learning curve yet...