a href="http://www.nytimes.com/2009/08/03/sports/03xgames.html?partner=rssnytemc=rss"img src="http://graphics8.nytimes.com/images/2009/08/03/sports/xgames75.jpg" border="0" height="75" width="75" hspace="4" align="left"/aOver the years, skateboarding evolved into vertical and street competitions, but the old-school park variety has been making a comeback. More...