Greek Minuscules with Abbreviations and Ligatures - Online

That you can find them in books is very well, but if you do not have them in books and want to see them, what about looking them up online? Now, I do not provide that, I only link to it, the provider of these useful scans is Fordham University (the Jesuit University of NY). But do enjoy them, and feel free to mention I linked there:

1) Greek Letter Forms
http://www.fordham.edu/halsall/ikon/greeklet.asp

2) Greek Letter Combinations(ligatures, etc.)
http://www.fordham.edu/halsall/ikon/greekligs.asp

3) Greek Abbreviations
http://www.fordham.edu/halsall/ikon/greekabb.asp

All of above is found on their page for:

4) Byzantine Paleography
http://www.fordham.edu/halsall/byzantium/paleog.asp