Paper Airplanes Roundup

http://www.paperairplanes.co.uk/ (follow the link for more designs)

http://www.bestpaperairplanes.com/ (follow the link for more designs)

http://www.funpaperairplanes.com/ (follow the link for more designs)

http://www.10paperairplanes.com/ (follow the link for more designs)

http://www.easy-paper-airplanes.com/ (follow the link for more designs)

http://www.mcshane.org/ (follow the link for more designs)

http://www.geocities.com/peterkunzmann/ (follow the link for more designs)

Paper airplane ideas (follow the link for more designs)

Honorable mentions:
(click on the pictures for full instructions)