We will have our Openstreetmap Philippines Marikina City Mapping Party
on March 20, 2010.

Invite your friends. We will teach you how to map using GPS, paper,
on foot, car or bike. Let's make Marikina City the best mapped city
in OSM.

It's fun. It's free. You can help.

Please watch this page for more details:
http://wiki.openstreetmap.org/wiki/WikiProject_Philippines/Mapping_Party/Marikina