The site by Andreas U. Schmidhauser (a UCLA Classics member) provides a free font that includes ligatures (those odd looking Greek characters you see in old manuscripts and print books where the letters run together and look very different than some of the Greek characters we read in modern books. The font can be found at http://schmidhauser.us/tools/rgl/
Renaissance Greek with Ligatures (or, for short, RGreekL2) is a font that will allow anyone easily to write Greek in the style of the Renaissance. For example, an editor of Greek texts may use it to reproduce a ligatured word in the manuscript that could be interpreted in different ways. Since the first printers adopted this style of writing for their type, the font can also be used to represent, say, an incunabulum. Many ligatures and abbreviations remained in use up until the eighteenth century.