I'm answering my own question, thanks to some wonderful html work by Susan/Taffy of the 4 Real Learning Forums, who made a nice widget with 4Real blogs on it. :) Also thanks to Blogrolling, who is now giving out for free what they used to charge for - the ability to have several blogrolls under one account. With these two things in hand, I'm all set:
First, set up an account at Blogrolling.com and start one or as many separate lists of links as you like.
(div style="height:100px; overflow:auto;")
Now don't forget to click save! :)
You can change the height in the first line of html to whatever you like. I like mine on the small side (100px) but that is just personal preference.
Since you can now have several blogrolls at Blogrolling.com, you can make more scrolling sidebar lists in the same way, for example you could have "Favorite Blogs," "Favorite Websites," "Books I'm reading (with links to Amazon)," etc.