Found
this website with some cool info on the burnside skate park. It seems to be written by one of the guys who skated Burnside in its earliest of days, and claims to be one of the people who started its construction. He gives the names of people who were inatrumental in the parks development, what it was like in that area at the time, why they chose that area, and how it's grown over the years. Even if you aren't big into skating it's still an interesting read as that park is a part of Portland history.
I bet some big names have skated Burnside. Would be interesting to see a list of pros who have shredded that place.
Also I didn't even know this until I read it, that Burnside skate park has been featured in a couple of Tony Hawks video games, and one other skating game which I hadn't heard of.