Not so much software, but a free webhost...

[prino]

I'm currently in the process of moving my data from Google sites ("nice" if you don't need anything other than basic HTML) and Hitchwiki (don't ask) , to something really retro,....

Neocities!

Yes, it's Geocities all over again, but with a fair amount of space (100Mb) and bandwidth (50Gb), and the editor (for quick tweaks) works like a charm.