Personally I would NOT stick them to a paper, sorting by country might help. Stamps are a tough area, as they damage easily. Please do not attach your stamps to paper, it will affect any value. Sorting by country will help when cataloging. The number one thing that affects value is condition. Something that may seem minor to you could be very significant to a collector. Even the tinyiest of flaws can affect values by as much as 90%.85% of all stamps have very little value and are refered to as "common stamps" and can be had for as little as several, sometimes dozens per penny.
There are literally thousands of on-line and ebay sites devoted to stamps and collecting so the competition is incredible. For very general questions you can try:
www.askphil.org/?a1htm
There are also more than a dozen collector groups that you may find helpful.
http://groups.ebay.com/forum.jspa?forumID=300013318
