During our preparation we searched the internet for information and found the links below very helpful.
Overland Sphere A not for profit global community of overlanders, sharing overland adventure news, stories & information. Also has facebook groups for different continents with very helpful information. Doctor Connect from KLM Health Services We used this medical service for our trip from Cape town to Houten during 1 year and turned out to be very helpful when we got sick on the road in Africa. Slippers op reis a travel blog with lots of information De einder voorbij another travel blog with lots of information iOverlander global database of facilities used by overlanders (camping spots, mechanics, money exchanges, etc)