Here are some tips and links, based on my own experiences, that could be helpful. Links should open in a new window. This page is a work in progress. Scroll down and find sources of good planning and background info, my experience with lodging, links to my personal impressions and travelogue and a downloadable guide for non-temple activities.
Great place to start: If you want one great website to start researching a trip to Angkor Wat I highly recommend Canby Publications . For the best 1-page general introduction to Cambodia that I have come across, check out this article at Lonely Planet.
Guide books and Angkor Wat information:
Cambodia's e-visa program: Note: In the past there had been some online discussions about the online visa site, some technical difficulties and several fake sites. All these issues seem to have been resolved. I and many other people I know always use it. But to be fair, the visa on arrival process is also generally quick and easy except for the occasional attempt of the immigration officers to get a few bucks extra out of unsuspecting tourists when paying.
Thru My Eyes: If you would like to know some more about me and my impressions of Cambodia you can read two articles I wrote shortly after my first amazing trip in October, 2007: "Welcome to Cambodia" & "Give and You Shall Receive". You can also read my travelogue entries from my subsequent trips at "Leonard's Trails".
There must be around 200 hotels, guesthouses and bed & breakfasts in Siem Reap in every price class imaginable. Here's my experience:
Tripadvisor: a great resource to explore various lodging options from the cheapest to the most expensive. Places are ranked and rated by fellow travelers. Have been very satisfied when using it.
Where have I personally stayed? Over my five trips, I have made a point of staying at many different places so I could share my experiences with the website visitors. They are in the $20 - $120 price range. Excuses to the real budget travelers as I did not stay in any super inexpensive places. Although I was very happy with all of these seven quite different places, Seven Candles Guesthouse has become my go-to place and my home away from home now when visiting!
Although the wonders of the temples of the Angkor empire are the main draw, there are so many other non-temple activities to do, especially for people who are lucky enough to plan a longer stay of four days or more. You can check that out via the link on the left hand side of the page or you can download my handy overview 'Beyond the temples'in pdf format.