My *totally inexperienced* understanding of it is that it's kind of like robotics engineering with Legos, so it's good for younger kids to start on, especially the engineer-y types, like my son. FLL stands for "First Lego League."

Here's the website I was directed to for info: http://www.firstlegoleague.org/default.aspx?pid=70 From there I found a local contact to ask about teams.

I don't know if that helps at all...

Kriston