I wasn't too impressed with the first link, although I may put it on my website and see what is looks like as it develops.
The second link was much more exciting! Sponsored by UVA and with Glen Bull cited on the "about us" page tells me that this is an excellent resource with excellent pedagogy as well as technically well designed. Glen Bull was the man who gave me the opportunity to get in on the ground floor creating content on the Internet.
I will add Primary Access to my website under both social studies and language arts.