LOLCODE

LOLCODE is an esoteric programming language based on LOLCAT grammar and spelling. It is designed to be fun and easy to read, even for non-programmers. LOLCODE is evolving everyday, and most of the current keywords are discarded or changed before they become a standard.

Hello, world!
HAI CAN HAS STDIO? VISIBLE "HAI, WORLD!" KTHXBYE

Loop and Variables
HAI CAN HAS STDIO? I HAS A VAR IM IN YR LOOP UP VAR!!1 VISIBLE VAR IZ VAR BIGGER THAN 9000? KTHXBYE IM OUTTA YR LOOP KTHXBYE

Try/Catch
HAI CAN HAS STDIO? PLZ OPEN FILE "LOLCATS.TXT"? AWSUM THX VISIBLE FILE O NOES INVISIBLE "ERROR!"

KTHXBYE

LOLCODE on Monorail
There are currently two websites running with LOLCODE. The parser was made in PHP by Tetraboy.
 * Tetraboy
 * Red_Herring