One advantage over SharePoint is that Google Sites does not require users to maintain software on PCs. Google Sites builds on the company's already well-established strengths - including cloud-based office tools and impeccable search. With the new API, if users choose to switch from SharePoint to Google Sites, they've now got an easy way to migrate their content.

Right now, Facebook Pages can't be considered a complete social networking solution like Ning -- the feature set is just too limited and constricting, plus only businesses, brands/products, and artists can have them. But it is easy to see why Facebook Pages could be attractive to social media marketers. They're easy to set up and manage, and they come with access to a built in audience.

However, even if the coming changes noted by Smith add features to make Pages more complete mini-social networks, there are a lot of reasons why Facebook should not be looked at by companies as a Ning-alternative (or an alternative to any full branded social network provider). First and foremost, even though Facebook has shown some indications recently of being more open, they're still a very closed platform. Verizon may be making a mistake by putting all its eggs in one basket.

Facebook Pages should certainly be part of a social media strategy for businesses, brands, and artists, but it certainly shouldn't be the only part. Facebook's most popular Page, that of US presidential candidate Barack Obama, provides a good example of a complete social media strategy done right. In addition to his 900,000 strong Facebook Page, Obama has a presence on more than 10 other top social media sites including MySpace, Digg, Flickr, YouTube, LinkedIn, and Twitter. He also runs his own branded social network My.BarackObama.com. Obama's complete strategy has helped him to raise record amounts of money online during this campaign cycle and build awareness among the younger, Internet-centric demographic.

Unless Facebook transforms Pages into a Ning-like platform for hosting external branded social networks that hook into the Facebook social graph (which seems unlikely given Facebook's clear reluctance to open its walled garden, though it would be a very interesting twist -- and might actually be a Ning-killer), there's really no reason to follow Verizon's lead and use the site in place of a branded social network.