StraightUpSocial News Links for 7/22/2009

MySpace Mail Slated To Launch Thursday

Staci D. Kramer at PaidContent tells us about MySpace’s plans to hand out @myspace.com email addresses to its 130 million users beginning tomorrow.

Ning Raises $15 Million More at a – Yes, Really – $750 Million Valuation

Kara Swisher at All Things Digital brings us up to speed on recent investments in the social network creation platform known as Ning, which have increased its valuation from $500 million to $750 million in just over a year.

Soapbox, Microsoft’s YouTube, dies on August 31, 2009

Emil Protalinski at Ars Technica reports on Microsoft’s announcement that it’s shutting down Soapbox, its user-generated video portal that was intended to compete with Google’s YouTube.