

Firstly, you go browse through some music. Movie soundtracks and game soundtracks work great! You can also go through vocals that have lyrics that fit the character! You assemble a playlist that can fit inside a CD! This is usually about 15 - 20 songs, which is like album length. Feel free to do make a single/EP if you'd like which is roughly 6 songs. A good way to see if they fit is to burn it onto a CD! :]
Next, you upload the songs onto a streaming site such as imeem.com, scratch that, imeem has been taken over by myspace... .___." Anyways, you can search/upload songs on youtube.com and create a playlist for your album! Title it something nifty, just like if you were to pitch this album to a record company, so you want some cool sounding title, right?
And for the fun of it, you can make awesome-posum album art to accompany your album. That way people browsing can just click a cover which takes them immediately to your album and they can start listening! Cool stuff right?
Get to it and have lots of fun!