Recently, a new PTC site, DicoreBUX, has started from January, 2013. As a promotion, it is offering Free Premium membership to first 5,000 members. Luckily, I got the chance to register under the promotion and got $2 from the sign-up. Till the time of this post, around 3,000 members have joined. So, there is still a chance for getting a Premium membership. After the first 5,000 quota, normal signup will be available free.Hurry up if you want to benefit from this promotion. Click the link below and join.