MySpace has launched the Data Availability initiative in partnership with Yahoo, eBay, Photobucket and Twitter.
The initiative will allow the global MySpace community to share its public profile data on websites of their choice.
The announcement throws open the doors to traditionally closed networks, by putting users in the driver's seat for their data and web identity, said MySpace.
The launch of the Data Availability initiative marks the first time that a social website has enabled its community to dynamically share public profile information with other sites.
"The walls around the garden are coming down - the implementation of Data Availability injects a new layer of social activity and creates a more dynamic internet," said Chris DeWolfe, CEO of MySpace.
"We, alongside our Data Availability launch partners, are pioneering a new way for the global community to integrate their social experiences web-wide," said DeWolfe.
The move will allow, for instance, MySpace users to incorporate parts of their profile within their eBay trading account.
Instant messaging providers, such as AOL and Yahoo, have previously integrated their messaging networks with other providers, to allow their users to send instant messages to users on other networks.