Finding traveling surfers in Mexico--Nexpa, Oaxaca??

Problem: Traveling surfer friends fell out of touch in Mexico. Their family is worried and needs to find them. Anyone seen them or know how/where to post photo to spread the word?
Details: Jill and Scott, traveling and surfing. Last known to be in Rio Nexpa in July 13. Traveling farther south along pacific coast.
Details: Jill and Scott, traveling and surfing. Last known to be in Rio Nexpa in July 13. Traveling farther south along pacific coast.