If you have realplayer installed, you can go to
http://www.booksfree.com/mp3/ and click the "As Featured In/On: Fox 5" symbol and get a small report about them

Gweep has some great places to get free books but they are usally a limited selection . I had a thread dedicated to just free books but not sure where it went too

Here is one if you like sci fi -
http://www.baen.com/library/defaultTitles.htmand another if you like old books
http://www.blackmask.com/and finally free audiobooks
http://www.audiobooksforfree.com/screen_main.aspIf you want to make your own audio books, i suggest you check out
http://www.nextup.com/TextAloud/index.htmlas I use it from time to time with the Kate and Paul Neospeech voices from time to time that I bought with Ultrahal and really like how realistic the voices can get
