This will come as no surprise since some major online companies are already party to the concept preached by OpenID.

There is no doubt that OpenID is becoming more and more popular. Major companies that have embraced the use of OpenID logins include AOL, BBC, Google, IBM, Microsoft, Orange, VeriSign, Yandex and Yahoo! acting as providers. Other sites similar to MySpace who have joined OpenID include, Plaxo, Wetpaint, Technorati, and LiveJournal. The ever increasing popularity of OpenID has seen the use of integrated OpenID support made a main concern in Firefox 3 and OpenID can be used with Windows CardSpace as well.

An OpenID is in the form of URL. This URL can be the domain name of your own website, or the URL of an OpenID Identity Provider. When you log in with an OpenID, you have to log in to the Identity Provider for validation.

Using an OpenID eliminates the need for users to remember items such as passwords or usernames when on OpenID-supported sites. A user only needs to register with any OpenID "identity provider”. Since OpenID can be used in any participating website, a user simply logs in using his/her OpenID. It’s important to note that OpenID does not require a centralized authority to confirm a user's digital identity.

According to MySpace, joining OpenID will give make it a lot easier for people to create MySpace accounts. They hope to get a lot more subscribers using this method. However, the way things are shows that users of MySpace will not be able to log into other OpenID-supported sites because they have jus signed as “providers”.

To use the OpenID login created on MySpace on another OpenID-supported site, MySpace needs to become a "relying party."