Learning new ways to make useful contributions to my community however that community may be defined is a close second. (doctordatingservice.com)
«It's a very useful contribution in the sense that it's the first time a homogeneous data set of the entire moon, front and back, has been examined from the point of view of crater distribution,» says Jay Melosh, a planetary scientist at Purdue University who did not contribute to the new research. (scientificamerican.com)
One very useful contribution in this regard is Eric M. Hanson's article, «A Beginner's Guide to Creating Library Linked Data: Lessons from NCSU's Organization Name Linked Data Project.» (slaw.ca)