This site is a blast from the past of the educational internet: Hellenic History. All the page copyrights seem to be pre-2000, but the graphic design is pretty retro. I have been finding the subtopics on the Archaic age particularly useful. I ran into a similar resource when I was writing my MA thesis: it explained the basic engineering problems faced by Roman aqueduct builders very handily, but didn’t serve as a rigorous source because it didn’t have any citations. I have the sense that twenty or twenty-five years ago people were excited to host encyclopedia entries on their personal websites, and that some of these people just kept paying the ISP fees. These articles are somehow easier to digest then Wikipedia entires and also evoke a lot of nostalgia!