Add contacts to your Constant Contact mailing list when they submit a Gravity Forms form.
It looks as if it this plugin is coded to authenticate with Constant Contact using their now deprecated XML "version 1" mechanism. (although this mechanism does seem to still be available as of Oct 2013)
I could not get this plugin to work out-of-the-box using my brand new WordPress + Gravity Forms installation.
FWIW - My constant contact account username is plain (no numbers or spaces)
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