Speed is a by-product of good technique. Speed for it's own sake will probably result in sloppy playing...

Practice practice practice. 16th note triplets (4 notes per beat) at 200 is a decent target - that would be 840 notes a minute vs what it sounds like you're doing now which is 270 notes a minute. If you want a target to aim for, 4 notes a beat at 200bpm - don't do it right now though, you might snap!

Style is more important, but speed has it's place. It has to be clean though - you can sound fast without actually going that fast as long as you get all the notes out...

you don't need a site to help you, just patience... :D