Hello, my main interest with Wiktionary is in creating and improving Greek entries. I rarely make edits on the Greek Wiktionary, except to add missing translations. My main references are the Babiniotis and the Triantafyllidis dictionaries. The latter is available freely online, the former can be found as a PDF on websites such as Scribd (but the PDF isn't worth the real one!). Another resourceful website is the IEP Historical Book Collection which provides access to more than six thousand Greek books, most of them digitised.