Mark Vatsaas is a wiki enthustiast and a software developer for http://vrbo.com. Mark is also a father of four, which means that his contributions to wikidom are sporadic and usually during the wee hours of the morning. (Time of this post: 1:43am)

If you want a moderately entertaining diversion, visit the model rocket website produced by Mark and his brothers at http://vatsaas.org/rtv.