Kelly's blog (Advantage play).
http://wheelwatchersopinion.blogspot.se/

Laurance Scott (Advantage play).
http://www.advantageplayer.com/roulette/

Foresters roulette computers (Advantage play).
http://myrulet.com/

Masters'Roulette (Advantage play).
http://www.mastersroulette.com/

Jafco (Advantage play).
http://www.jafcoroulette.com/

German forum with section for physics where Sache (Christian Kaisan) hangs around and Kelly.
Sache/Kaisan won serious and big using advantage play in the past and Kelly is active professional.

http://www.roulette-forum.de/

You need a web translator to read the AP forum section if you do not speak German.

Note:
Can be a good way to get hints and guide-lines reading that forum.