School links:

My website.
My laser Professor's
The lab I worked in for the class.
IPG Photonic's website

Laser links:

LambdaPro Technologies
Molecular Technoogy GmbH (Crystals) Light Age Inc.
KSU's description of laser types
A description of several types of lasers.
A description of a solar-pumped laser
A bunch of parts for lasers
A company that makes laser diodes.
Another company that makes laser diodes.
A company that makes optical parts.
A well known laser-making company.
Some fun applet demonstrations of optical properties.
A company that makes some interesting laser-related products.