Of all the things the internet has brought to mankind over the last few years; lolcats, dancing rodents, maps, etc..., the greatest by far is the Flying Spaghetti Monster. For those who may not know, the church of the FSM (a.k.a. Pastafarianism) was created as a protest to the Kansas City School board when they wanted to add Intelligent Design to the science curriculum. The idea behind this being, that if they wanted to teach an alternative view of creation in the schools, then they should allow for the teaching of all such views, and thus Pastafarianism was created to be one such view.
And now (well actually last year) the church has its own Gospel. Unfortunately, it doesn't add very much to the mythos that hasn't already been covered on the website (see the link above). Admittedly I prefer a book to a website any day, but I was really expecting something more from this.
However, if you're coming to the religion as a newbie then this'll probably be a great read. The two central jokes of the gospel are brilliant (the FSM's role in unintelligent design and the divinity of pirates), and the rationals behind these are equally wonderful. However, the joke can get a little stale by the time you reach the end of the book and have processed the ontological, teleological, mathematical, theologebraical (yes the book makes that a word) and even corporate proofs of the gospel.