Yep Dr Lange (Norman) has got the series up to 30 now.

B&N will let you order them online.

http://www.barnesandnoble.com/s/gor-...re=allproducts

You can keep up on all the latest Gor stuff here on the only official Gor site endoresed by Dr Lange himself:

http://gorchronicles.com/modules/wfchannel/