It's mostly goods and discounts. I hit the streets really hard during my first Tybee 500 and we managed to raise about $1000 through business sponsorships...honestly, I could have made twice the money with the same amount of time with a second job.

On the other hand, we have had some terrific sponsors kick in discounts and goods in the past - which really does ease the pain and you get to play with some cool stuff.