While searching for articles on how to handle HTML entities in XSLT, I came across
Improve your XSLT coding five ways, authored by Benoit Marchal. Marchal provides five tips to add to your developer's bag of tricks.
Another article I found, 50 XSLT Tips, by Darshan Singh, is another good source, but 50 tips? How many tips can one person digest at a time?