I'm trying to make a small momentary buzzer circuit. I want i to be so that when it is powered on (9v), the buzzer will sound for 2 to 3 seconds and then shut off until the circuit is powered on again. Any ideas?

 

Yes....see the 555 ebooks here in AAC

 

I didn't really see anything there that sounded like what i needed

 

A 555 monostable timer circuit will do the job. The power stays on all the time, a button press will trigger the timer, sending power to your buzzer. Here's a good site for timer circuits:
http://home.cogeco.ca/~rpaisley4/LM555.html#4
Scroll down to the One-Shot Monostable circuit

 

A 555 monostable timer circuit will do the job. The power stays on all the time, a button press will trigger the timer, sending power to your buzzer. Here's a good site for timer circuits:
http://home.cogeco.ca/~rpaisley4/LM555.html#4
Scroll down to the One-Shot Monostable circuit

Is this the circuit i should be looking at?
The "LM555 Monostable Oscillator Circuit Diagram"

 

This is a buzzer circuit:

This togheter with what you find in Bill's blog, you should be fine.

http://forum.allaboutcircuits.com/blog.php?b=378

Just like R!f@@ said.