8) Expect The Unexpected
Voluntourism trips tend to generate "the unexpected," and they often lead to challenges that can defy logic or your own desire to accomplish something. Be aware that well-crafted and scripted itineraries can easily change unexpectedly. Understand that if you take greater risks with accommodations, transfers, extreme climate, intense interaction, and engagement or service work, you have increased the potential for "the unexpected" to occur.

9) Intangibles and Value Added
Having a guide for the trip who has lived in the region for an extended period of time can be extremely valuable. These "Sabios de la Frontera" (Wise Ones of the Border), as one voluntourism organization calls them, can help you betterunderstand the community in which you are working. You might also consider selecting a trip led by the founder of a voluntourism organization, who will have deep knowledge about the project on the ground. Look for these hidden voluntourism jewels as you conduct your search.

10) The Voluntourism Footprint
At its very best, VolunTourism is balanced engagement rooted in reciprocity. A balanced mix of service and tourism-related activity can mean that local residents benefit from your service and also earn some income by providing a guided tour of their village or selling their arts and crafts. In addition, a portion of your paymenst may also be funneled into programs that serve the local community beyond the term of your visit. Be aware of the potential of your time, talent, and treasure.

David Clemmons is the founder of VolunTourism.org