Here are some resources for community events and local hotspots:

Rochester tourism website's Calender of Events:

RochesterMN website's Calendar of Events:

Ongoing family-oriented attractions (with descriptions!):

Local ongoing attractions:

A comprehensive dining guide:

Nightlife (mainly bars):

Performing arts:

Shopping centers:

Sport and recreation:

Slightly satirical, yet exhaustive list of things to do in Rochester:
(Note: not completely up to date)