One of the cool things about Whole Wheat Radio is not only can you request shows of songs once you've created an account and logged in, you can create your own based on criteria you define. Cooler still, you can use existing tags/categories for your songs, or you can create your own!
I currently have two tags, Rubenerd Bagus! and Makes Ruben Feel Sophisticated, and my sister has Elke Faves This!
What's also been fun is defining synonyms for our tags/categories; the site itself says they're really just used so the internal search can pick them up but that's not to say we can't have some fun! I've used the word "fun" three times this post, counting this sentence. That's funny, I didn't know sentences could count. Chicken on a raft.