The third annual Cloud Computing World Forum will take place in London June 21st and 22nd. The organizers expect more than 2,500 IT and telecoms executives to attend.

The forum, which features workshops, seminars and an exhibition,will discuss security and privacy issues in Cloud computing; how to reduce costs; mobile platforms and social media; and new IT business models.

Among featured speakers are NASA CIO Adrian Gardner, NTT Managing Director Masaaki Moribayashi, Marks & Spencer CTO Alan French an Chris Chant, director of the UK government's Cloud computing program.

More information on the Forum can be found by clicking here.