.CC is the (ccTLD) Country Code Top Level Domain extension for the Cocos (Keeling) Islands which are situated in the middle of the Indian Ocean. The
.cc ccTLD has become popular worldwide as a quasi (gTLD) Global Top Level Domain extension, because it is both easy to remember and type. There are many 3 character personal initials and acronyms available.
cc has many alternative meanings, ref:
The Online Dictionary. I particularly like the meaning of cc = Carbon Copy. Making it a great extension to have your initials as your email address.
There is no differentiation in the search engines (Google etc) between gTLD's and ccTLD's. So any
.cc domain with the right content and (SEO) Search Engine Optimization can rank right up there in the search engine results with any .com domain.