What does the tag #project365 mean on Twitter?

Project 365 is a photo-a-day-for-a-year project that amateur & professional photographers alike are taking on. Photojojo.com (@photojojo) provides a tutorial (http://bit.ly/5SCT0Y). The benefits include 1) a photo-diary approach to life that one can look back on and enjoy later, 2) a way to remember places, people, accomplishments, and events that were important 3) enhanced photography skills.