Recently Tinkercad.com announced it has disabled new sign-ups and will be eventually closing down the site entirely come June 2014. The team has mentioned a newly launched project called "Airstone", aimed at developing a new more robust online design environment. Sounds very promising, but for the time being how will this effect 3d printing maker movement? Read Tinkercad's FAQ is up for users of the site to read.
"Effective immediately we have closed signups for new users
April 30 2013 – All free accounts will be changed to read only
August 31 2013 – All academic accounts will be changed to read only
December 31 2013 – All paid accounts will be changed to read only
June 31 2014 – Read only access for all users will be discontinued"
blog.tinkercad.com/faqs