ZipprHead writes: "The Public Library of Science and Mendeley are hosting a "Binary Battle". A competition to develop applications built on their public APIs. There's $16,000 in prize money to be won plus other cool gifts. Not as much as the cool million offered for the Netflix API competition, but there is a lot of good karma associated with contributing to open access research that enhance scientists' and all our lives and 16k is well... still 16k. They've compiled a list of ideas sourced from the scientific community. You just have to write the code to wire things together.
Disclaimer, I work at the Public Library of Science."