The Factor web site was previously served by a pre-release Factor 0.81 snapshot, with various random bug fixes "patched in" live by me copy and pasting the relevant colon definitions in the listener. I finally got around to updating the server to run Factor 0.83.
You will notice an increase in the documentation available for browsing. HTML formatting of Factor markup is still not ideal, however I am working on it.
I hope this new version is as stable as the previous one was. For a long time I was having I/O bugs, but in the last few weeks the 0.81 code did not crash at all. Lets hope there are no regressions in 0.83.