i know we mention EGS at the forums some times but the newest npEGS is athis type of tf:
http://www.egscomics.com/egsnp/d/20080908.html
And you can have this forum topic without
http://www.misfile.com/
the whole dam comic is about this type of TF.
yes i know you all probaly know about misfile but it needs to be mentioned for completion sake. also maby just maby someone dosent.