Free online graph paper generators: variations of squares, triangle, rhombus, and hexagonal, circular and polar, for drawing, gaming, writing, note-taking and much more. Blank Sheet Music (Flash) for all arrangements (PDF). Create and edit your own grids, probability and logarithmic graphs, petri-dish inserts and storyboards. Also, multilingual  monthly and yearly calendars. Plus, more than you ever wanted to know about ISO paper dimensions and printable paper models of polyhedra. Prev-ious-ly.
posted by Bora Horza Gobuchul on May 28, 2012 - 36 comments

Light and Matter has put together an excellent explanation of the Three Basics of Exposure and Photography using (mostly) eight bit graphics. [more inside]
posted by quin on May 25, 2012 - 6 comments

100 Helpful Photography Tutorials for Beginners and Professionals. Photography as both a profession and a hobby is an expansive topic that covers a vast range of subjects from science and art. No matter where you lie on the spectrum, there is always more to learn. From the folks at Tuts+.
posted by netbros on Aug 22, 2010 - 15 comments

Ever wondered how the smart people create those weird ♥ √ ⊄ ⊗ characters on MeFi and in other places? Wonder no more. Brought to you via MeFi's own riffola, who has a simplified version of his own.
posted by dg on Jan 28, 2003 - 62 comments