The Association for History and Computing (AHC) exists to encourage and maintain interest in the use of computers in all types of historical studies at all levels, in both teaching and research.
If it's a scholarly edition (or something similar) you are working on the Review Journal of the IDE (http://ride.i-d-e.de/) could be of help. DHCommons (http://dhcommons.org/) is building up something more general. Digital Medievalist (http://www.digitalmedievalist.org/journal/) has started recently to publish reviews on digital projects as well.
At least a few scholarly publications include digital project reviews in addition to book and exhibit reviews. I know that The Public Historian (published by NCPH) has some, and the Journal of American Historians which also has some guidelines for reviewing digital projects (http://jah.oah.org/submit/digital-history-reviews/).
You might also look at white papers from projects that you particularly admire, or any process blogs they may have published, to see how they talk about their work.
Dear Beth, glad to see you're getting into the Digital Humanities game!
I'm involved in a big digital history project called the Seshat: Global History Databank (seshatdatabank.info). Our website has some info on our methods and such. We also have a few articles on the basics of the project that might be useful to you:
-Turchin, Peter, Rob Brennan, T. E. Currie, Kevin Feeney, Pieter Francois, Daniel Hoyer, Joseph Manning, et al. “Seshat: The Global History Databank.” Cliodynamics: The Journal of Quantitative History and Cultural Evolution 6, no. 1 (2015).
Announcing a new information visualization tool: http://esperr.github.io/newsinproportion/
News in Proportion takes a search of the Chronicling America newspaper database and maps those results by state in order to highlight regional variations. The innovation in this case is that one's search is mapped proportionally – not only raw counts, but also how those counts compare to the number of pages digitized for each state (which, unsuprisingly, vary a great deal).