elephant gambit
I was on Amazon.com and did notice an Elephant Gambit book on
sale. Note the book by Jonathan Rogers is unavailable on Amazon
at this time. See link below.
http://www.amazon.com/Elephant-Gambit-Niels-J-Jensen/dp/0961960604/ref=sr_1_1?ie=UTF8&qid=1369938820&sr=8-1&keywords=Elephant+Gambit

Thanks for quality posts, Darth. I like the trickiness of this gambit! OFC i'd never fall for it bc #cantbeatthebuffchix

Sadly I never found a reasonable answer to 1.e4 e5 2.Nf3 d5 3.ed Bd6 4.d4 e4 5.Ne5 Nf6 6.Bb5 + that doesn't get half the pieces hoovered off the board. 6...Kf8 has been played but ugh....
My computer isn´t too impressed, I guess 6..c6 is a good try. I have played the elephant gambit a few times over the board and I do employ it regularly in blitz games (along with the Latvian), but usually the opponents do not go for very complicate lines but like to keep things easy, which tends to keep them easy for me as well. Against 3.Nxe5 I usually play 3..Bd6 4.Bc4 Bxe5 and nobody has so far interposed 5.Qh5 which gives White a small edge.

Thanks DarthMusashi, very exciting games. Some opening seem unsound but are difficult to refute otb and have practical application in otb games.

The Elephant is a classic example of “trick chess.” A 2400 or below can beat up on weak players with it and act like openings don’t matter, but against familiar opponents who can run it through an engine it, like elephants themselves, generally won’t fly. Even the “won” positions have complicated tactical wrinkles that must be mastered. It’s a good example of how, below 2400, your rating is defined more by your ability to deal with openings like this. At some point, you should score 99 percent against it, and since some who play it are 2400, well….
This line is part of "booking up in the Ruy Lopez" btw.
Chess under 2000 is nothing but tactics anyway so such an opening has it's uses. I remember Nakamura talking about the old "chess is 99% tactics" quote and he actually said it was maybe 99-95% for under 2400 players which is a little scary.
The elephant in the room.
http://www.chessgames.com/perl/chessgame?gid=1295509
http://www.chessgames.com/perl/chessgame?gid=1295510
Possibly helpful:
Starting Out: Open Games by GM Glenn Flear (2010)
https://web.archive.org/web/20140626232452/http://www.chesscafe.com/text/hansen134.pdf
Playing 1.e4 - Caro-Kann, 1...e5 and Minor Lines by John Shaw
http://www.qualitychess.co.uk/ebooks/Playing1e4CaroKannandothers-excerpt.pdf