My fantastic employer let me put Safari Books towards my (ample) education/training budget last year. Just last night I remembered that I hadn't used it in a while so I fired it up and undid some books that were in my queue that I didn't need anymore. Then I had to think about what I wanted to get this time. Oh a book on JPA. Yes, they have one and yes it's already become useful.
Hooray for great employers!