This week The Encyclopedia of Greater Philadelphia reached and surpassed 400 topics online with the publication of the essay Community Development, by Howard Gillette Jr. and Domenic Vitiello, two of our editors. The continuing growth of this regional resource is made possible by the talents and good will of hundreds of writers, our civic partners, and the staff of editors, fact-checkers, and digital publishers working at our home base at the Mid-Atlantic Regional Center for the Humanities (MARCH) at Rutgers-Camden. The current phase of expansion is funded by generous grants from the National Endowment for the Humanities, the Mayor’s Fund for Philadelphia, and Poor Richard’s Charitable Trust.