Over 23 million professionals are members of LinkedIn, a professional networking site that began in 2003. LinkedIn recently announced it raised $53 million from existing investors, to purchase new ventures and expand online services to business markets, particularly in India and the United Kingdom.

Last year, Microsoft invested $240 million in Facebook, valuing it at $15 billion. LinkedIn is said to be worth $1 billion with this new round of investing.

brandUNITY’s president, Ann Jensen Warman, recently updated her profile and is actively expanding her network. View the profile here: brandUNITY at LinkedIn.