USTA Tournament:

USTA Membership Info
USTA Tournaments
USTA State League
USTA (NTRP) Ratings

 

Local:

Midwest USTA Site
Wisconsin Tennis Association (WTA)
WIAA High School Boys Tennis
WIAA High School Girls Tennis
Greater Milwaukee Area Tennis Association (GMITA)

 

Other:

Association for Tennis Professionals (ATP)
International Tennis Federation (ITF)
Women’s Tennis Association (WTA)
U.S. Open
Australian Open
French Open (Roland-Garros)
Wimbledon
U.S. Open Series
BNP Paribas Open

 

Blog Articles:

How to Start Tennis for Adults
Post-Match Tennis Recovery: A Guide for the Casual Player
Why You Should Restring Your Tennis Racquet
5 Things to Know Before You Start Playing Tennis
Get the Low Down on Tennis Lingo
7 Life Changing Benefits of Playing Tennis
The Benefits of Adult Tennis Lessons
5 Misconceptions About Tennis
Ten Quick Tips to Improve Your Tennis Game
5 Everyday Stretches for Tennis Players
Size Matters When Choosing Tennis Equipment for Kids