This is a fantastic effort! A key change needed on the internet is more ORGANIZATIONAL tools. I’m trying to do that on Medium. That’s the only way to tame the noise.
Could you do something for me. After you “finish” this effort ( you said Jan. 1), could you copy the whole thing and publish it as a new story. Give it a new name, like “List of 500 Free Things on the Internet”. Then publish it using the tag: REFERENCE. That way it will collect with similar organizing tools. Remember, don’t just edit your current story and change the tags, because then some people on the tags you have won’t see it.
For example, here is an index that I posted that lists active tags.