Try Dreammoods.com for tips on Lucid dreaming, because any tips I would give you on inducing lucid dreaming would be from that very site.

The best technique would be practice, and if you have almost have a successful result, try to figure out if you did anything differently and apply that again.

May I ask why you want to induce lucid dreaming? Cause I've tried it myself before, and I actually don't get as good sleep when I do, also the dreams take a rather boring turn. Haha..

Good luck!