I am not sure if Dave's system is / can run some kind of aggregator or list of all of us who are running 1999 sites, but it did strike me that the nature of the people involved with this might be interesting to each other.
So, I took the liberty of adding those people who had already posted their 'first post here' on Google Docs - to a folder in my Feedly - which you can access here.
If this is useful - I will continue to add to that group as I become aware of other sites. On the flip side - that URL is in the public domain - and if you do not want to be listed there - let me know.
Letting me know is best done via 'replies' to this post.
Thankyou for you attention.