I need to get back on the bandwagon, too! I use http://www.sparkpeople.com
. It's nice there's so many online, tools! Good luck!
Btw..I'm one of the people that prefer to weigh every day. I find it keeps me on track better. The fluctuations are normal and I don't panic. What I always look for is a downward trend and as long as it's doing that I'm fine. Do what works for you though.