Here is my bookmarked web list. I don't guarantee that any of these sites still exist, that they are in the right category or that they are of any interest at all. Use at your own risk, but enjoy with my blessing.
I have now updated this list to check that all the connections work. I shall do this in future periodically. Ignore the "last updated" line at the very bottom of the page, this page last check 3 June 2018.
This page last updated: 10 June 2018