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At the Mobile World Congress in Barcelona, MySpace just made some major announcements. They've announced plans to develop mobile applications for the Nokia S60 as well as the much-anticipated Palm Pre. However, for most of us, the bigger news is the relaunch of the MySpace Mobile web site which will occur this week. Yet even with the updated branding and new user interface elements introduced by the revamped site, we wonder: will it be enough to win users back from Facebook?

In this edition of the Weekly Wrapup, our newsletter summarising the top stories of the week, we look at the latest social networking statistics showing that Facebook has overtaken MySpace, review a product that's had great success using OpenID, continue our series on recommendation engines, check out the new version of Amazon's Kindle e-book reader, review 4 innovative location-based apps, and more. Also check out the highlights from our Enterprise Channel and Jobwire, ReadWriteWeb's new product which tracks hires in tech and new media.

MySpace and Facebook are currently locked in a fight for the top position among social networks. In the U.S., Facebook definitely has the momentum going for it, but there is also clearly some life left in MySpace. We just received the latest data from MySpace, which argues that the site saw a significant spike in user engagement last month. At the same time, though, while overall page views were up, the number of unique users only remained stable.

Brett Brewer, who co-founded InterMix Media - the company that developed MySpace - and turned a tidy profit when that company and MySpace were sold to NewsCorp for $580 million, says MySpace's ongoing battle for social network supremacy with Facebook won't last much longer. In his opinion, Facebook has already won - but it won't remain a winner for long.

The share of adult internet users who are involved in social networking online has more than quadrupled in the past four years in the U.S. In 2005, only 8% of adults had a social network profile. As of December 2008, that number was 35%. What motivates those in older generations to go online? Is it the opportunity to professionally network with their colleagues? The answer may surprise you.

Last night at the offices of blogging software company Six Apart, engineers and social media specialists from a number of companies large and small met to discuss proposed standards for the future of "activity streams" - the system of displaying recent activities of your friends online. Think Facebook Newsfeed, the basic format of FriendFeed, or the kinds of update chronicles we're seeing now on almost every social network around the web.

Meebo, the leading Web-based IM service, has reached its current level of popularity by providing Web access to popular IM interfaces like AOL, MSN, and GTalk. Meanwhile, in parallel, there has been another growing segment of instant messaging taking hold in popular social networks. It was only a matter of time before Meebo extended its functionality to embrace this growing market - and now it's happened with Meebo's Facebook and MySpace IM integration.

According to a new report from Netpop Research, 76% of all U.S. broadband users actively contribute to social media sites in one form or another, and 29% contribute regularly to social networking sites. Among these social networkers, Facebook is quickly catching up to MySpace, though iMeem, LastFM, Digg, and LiveJournal are also very popular with college students. The report also compares the online habits of these social networkers with those broadband subscribers who choose not to contribute to social media sites and finds a number of very interesting differences.

A few months ago, MySpace began to reveal details about its answer to Facebook Connect - MySpace Data Availability. At the time, we were left to guess what the offering would contain. What we did know was that - in stark contrast to the proprietary nature of Facebook Connect - MySpace had chosen to rely on the Open Stack, using OpenSocial, OAuth, and OpenID to build its service. Now, MySpace has released that functionality - renamed MySpaceID - and, in so doing, it has helped Open Standards take another step forward, as well.

Forget losing your job, apparently your MySpace or Facebook profile and photos can now cause you to lose your degree. In what may be one of the most frightening rulings regarding social networks and privacy to date, a federal judge has ruled against a former student of Millersville University of Pennsylvania who was denied her college degree because of an unseemly online photo and its accompanying caption found on her social network profile.