These are links to some of the best tech book publishers. Enjoy!
http://www.go2atp.com/
http://www.atplearning.com/
https://www.packtpub.com/
https://www.acm.org/
https://www.oreilly.com/
http://www.springer.com/gp/
http://fitpublishing.com/
http://www.intechopen.com/
