http://en.9apartment.com/
Good site for apartments in Bangkok, includes categories for places with high speed internet, wifi, or close to mrt/bts but doesn't appear to allow combining of searches. Some really cheap places, like 3k THB and upwards.
http://www.earthlodgeguatemala.com/
An eco lodge and avocado farm built and run by a Canadian American couple outside of Antigua.
http://bulungula.com/
Bulungula, possibly the most inspiring place I have been on earth. Truly amazing.
http://www.tucanhotel.com/
Tucan hotel / hostel recommended by Chrissy in Guatemala.
http://www.costaricabackpackers.com/
Hostel with free wifi in San Jose, Costa Rica. From $12 a night in the dorm. Has a garden, pool, etc.
http://www.redtag.ca/
RedTag are a cheap flight / holiday search engine. Recommended by Canadians who found uber cheap tickets from Montreal to Belize City.
http://sathornsaintview.com/
The Sathon Saint View serviced apartments just off Sathon Soi 11 in Bangkok (very close to where I used to live).
http://www.gumtree.com/
GumTree is a worldwide notice board where you can post classified ads on almost any topic. It's good for accommodation, very similar to craigslist but international.
http://www.syha.org.uk/
The SYHA run all the YHA hostels in Scotland.
