+1
need to learn what the software is,
usually open source,
joining all sorts of different systems, like NationsBuilder, facebook, twitter, other systems to join one, is a pain...
some might be worth it, but a little like dependency hell, and costs associated, for non profit coop groups trying to start up, be in budget, keep learning to a minimum.
like PBWorks.com, previously called PBWiki.com, a hosting site, I chose for a project, based on ease of use for others, turned out it was just me doing all the writing drivel, and now 8+ years later, not moved it to a more standard MediaWiki, and tools and automated, symantic web type optoins as a disabled writing tool too, editor non standard, but what was costing hosting, went free, some projects go the other way, start free(ish), like google, gmail, free but quickly, it seems balloons to more than the 15 Gig free amount into $2/ month, in perpetuitty, which adds up, on limited disabled income, might have been 5 gig, went up to a higher free amount.
CrippleWare, trial only, and source code available, github accounts requiring generating access keys, etc, all a learning curve, or social media requiring full names, etc...