REST in less than 30 words
2009-03-24 @ 19:28
-  Representation
- A sequence of bytes plus representation metadata to describe those bytes
-  Resource
- A conceptual mapping to a set of entities, not the entity that corresponds to the mapping at any particular point in time.
OK, i cheated, 27 words without the footnote items.
btw, these are direct quotes from section 5.2.1 of Fielding's dissertation. nothing novel or anything.