Latest Facebook Changes Spark More Privacy Debate  – Recent product changes by Facebook have drawn a range of privacy critics… that phrase is timeless at this point. The company has, in one way or another, tried to be more open with user data in the past few years. Politicians, privacy groups and others have consistently criticized this effort.

Cost-per-impression (CPM) advertisers on Facebook have recently been told by the company that they may see fewer click-throughs on their ads due to pending changes in its performance advertising system.

Buried in Facebook’s many announcements and changes at its f8 developer conference last week was a couple slight modifications to its mobile documentation. The company added support for an open standard that allows secure data-sharing, called OAuth , and it changed some phrasing around the iPhone SDK. OAuth, or Open Authorization, lets users share private information like photos and friend lists from one site to another without having to share their username and passwords

Musical artists are now brands. Declining physical album sales have pushed artists and their teams to think more holistically. Smart musicians are moving away from making a quick buck off of piece-meal Mp3 sales, instead looking to foster institutional allegiance from their fans, facilitating the sales of higher-priced items like concert tickets, apparel, keepsake-laden box sets and even  super-premium personal experiences with the artists themselves

This week’s list of emerging Facebook apps still under a million monthly users is led off by Battle Punks , a game that’s unusual for its 3D graphics.

As investors pour millions into social commerce sites of the Group-Buy persuasion, should brands and retailers be looking to add Group-Buy functionality to their sites?

Q: How much is a Facebook  fan , er ‘liker’ worth?  A: $3.60. New data shared by Vitrue , the Facebook marketing/sCRM agency with some very big clients (Apple, AT&T, Best Buy, Ford Motors, Kelloggs and P&G) has calculated that the media value generated by the average Facebook fan is $3.60/year (if you post to your wall 2x per day, based on impressions generated in Facebook news-feeds.

Whilst many brands have still to digest the difficult-to-underestimate implications of new Facebook initiatives announced last week at  f8 (widely seen as Facebook’s  Google Moment , amounting to nothing less to an audacious bid to takeover the Web by becoming the social glue that binds the web together by rolling out Facebook  social plumbing across the entire Web (through  social plugins , portable social graph (Open Graph), single sign on/up (using OAuth 2.0), social analytics and a new virtual currency)), some brands been quick off the mark with new f-commerce initiatives using the new technology.

Here’s a speed summary of Mitch Joel ’s ( Six Pixels of Separation , Twist Image ) talk at this week’s Social Commerce Summit, with advice on how to adapt your digital marketing strategy for today’s social-powered web. 1.

OpenSky , the new brands-to-bloggers social commerce network headed up by John Caplan (former chief exective Ford Models, CMO About.com) and Ted Rubin (former ELF CMO) has raised an additional $6m funding , taking total funding to $11m. OpenSky, soft-launched earlier this year with an all-star board of directors (Scott Kurnit, Bob Davis and Daniel Ciporin), is an innovative social commerce business that helps brands make and manage commercial relationships with bloggers who endorse their products and services