Tossing that ball

Its often an annoying part of having crapped out on the service; the only thing more annoying is, right before you hit the serve, you know that your toss wasn't the greatest, but you can't stop yourself and get sucked into hitting it anyway.

Here's a bunch of things to look for, practicing the ball toss. As its said, a match is no place to fix your problems.

• Have a good stance
• Right foot parallel to the baseline
• Left foot points to the right side of the net
• Feet in their normal distance away (shoulder length)
• Hold the ball in your FINGERTIPS
• Start with the weight on the back foot and then bring it forward
  
• Push it up to toss it, slightly forward and to the right. At about 1-o-clock.
• Keep your eyes on the ball as it leaves your hands until you have hit it. Taking your eyes off it, will cause the head to go places and the racket usually follows the head.
  
• Hit the ball at its peak. DO NOT toss it too high, or too low. The ball should peak at the point where you plan to hit it.
• Keep the left hand(tossing hand) stretched up after you toss, until you begin to uncoil. Tuck it into your belly around the point of contact

Rudsedski's pop made him toss the ball, until it kept landing in the circle drawn on the court.

Additionally, this drill might come in handy:
Place a spare racket such that the tip of the handle is right before the toe of your left foot and the tip of the racket face, points to the right net post. Keep tossing the ball to get it to consistently land on the spare racket face. Also, keep the height to which it must be tossed in mind.

Use the same ball toss for all kinds of serve. This will ensure that the opponent is not in a position to anticipate a particular serve, from the way you toss the ball.

Ref:
Rusedski's tips
Tennis.com
tennis.about.com