I wanna practice algo trading

[KotMot]

I want to learn algo trading at home. I need to write software and connect to exchange.
Hot to connect to exchange? I heard about FIX? Do you know some test environments?
What I may read about this. Thanks.

 

[elliot]

http://www.fixprotocol.org/

 

[amit patel]

FIX Open source engine : Quickfix (c++), Quickfix/J (Java)

 

[quantstart]

Are there any other sources of good information on algo trading besides the protocol implementation?