Group rides in or near Alpharetta Area?

Here a link to a list of rides:

http://www.sadlebred.com/atlroadrides.html

Both of the Webb Bridge ride options are very "fast" - most of the cyclists are Cat 1-5-level/serious recreational cyclists and they play hard...

The Jittery Joe's ride just started up again two weeks ago (though I haven't been out there yet).  I rode this one quite a bit this past year and enjoyed it.  Good group (mix of triathletes and "roadies"), good base training pace, with route options that offered a nice mix of terrain.  They're riding a different route this fall/winter:

http://www.mapmyride.com/ride/united-states/ga/milton/931897439541

http://www.crabapplejitteryjoes.com/

Not sure if the Alpharetta City Hall ride is still going...

I did the Webb Bridge ride and (thankfully) rode with the B Group ... great group of people.  At one point I fell off the back; a guy went back to scoop me up and pull me back to the pack.

That said, it is not a slow ride. Being in the group helps, though, as you literally get sucked along into sustaining 18-20 mph - yet it feels like you are only pushing 16.

The ride we did was 55 miles and full of hills, where drafting is of little assistance.  Be prepared to climb strong enough to maintain contact with the group.