Recently, there were some changes made to VMware blog site.
From now on all new posts will be posted on this new site blogs.vmware.com/vsphere/networking.
I think the content of the old site will remain there. I will try and see if I can have the old blog posts moved to the new site.
So please update your bookmarks.
Also, I wanted to let you know that the VDS best practices paper is now available to download here.