Is Google AdWords worth the effort?

I'm wondering if Google AdWords is worth the effort. Does it bring in enough visitors to make it worth it?

TIA,
Nathan P.

Before you start a thread with this kind of general subject, you should search the forum.

check these older threads:
http://www.webdigity.com/index.php/topic,6233.0.html
http://www.webdigity.com/index.php/topic,1563.0.html
http://www.webdigity.com/index.php/topic,3633.0.html

....and it is worth your time and money, as when you learn you can make a steady income by buying lower than you sell ;)