Bulk Domain

I am looking to buy some bulk domains i.e. 20 to 50. So any one can suggest me a good source for buying domains.

Mods move this thread to a proper section if this is a wrong place. Still a newbies in the BHW compared to all seniors and genius brains present here.

InternetBS. I manage all my domains through their API and it is fantastic.

Before that I used their dashboard which allows bulk management of domains. They also have free private whois.

Thanks for the reply.