Thank you for the yarn suggestion. I just found out that the website owners updated me (via email) on what the monks and nuns need and also that they are planning another trip. Here is the info that was emailed to me.
The last group took 132 hats! They couldn't deliver them personally because of the unrest. They will be shipped from Katmandu as soon as it is safe. Another trip is planned for April 2009 and we will be updating the website as soon as we determine the best strategy. In the meanwhile, you are welcome to knit hats! We are also happy to accept socks, mittens, fingerless gloves and scarves. Yarn can be all wool or blended with animal fiber such as alpaca. For items like socks, mittens and fingerless gloves, which get harder wear, wool blended with nylon would be great! All items need to be plain maroon and knit with simple patterns (no lace, please!) Size range for socks, mittens and fingerless gloves can be from large child's to medium woman's.
Thought people would like to know.