InterOrbital Systems (IOS) is -- in the words of their website -- a "rocket and spacecraft manufacturing company" that locates itself at the Mojave Airport and Spaceport in Mojave, California. They recently announced that they were offering to send people's personal satellites into low-earth orbit on a NEPTUNE 30 rocket for the low low low cost of $8,000.

So far, IOS has signed up Bob Twiggs, inventor of the breakthrough small satellite, CubeSat (TubeSat’s larger cubic cousin) as a core component in his Kentucky Space/Morehead State University Space Science curriculum, among others.