Facebook now reports more than 175 million active users, compared with 130 million for MySpace, its closest direct competitor. Twitter has 9.8 million users and 10 million by the time you read this post. Facebook's fastest-growing age group is the over-55 crowd; membership in this group grew 27% during February alone. They now represent 9% of users overall. The next-fastest-growing age group is 45 to 54; its numbers rose 21% in February.
Source: MoneyCentral MSN