An article from Barbara Fister about the role and biases of large providers like Google and Facebook in curating, sorting, filtering their content, usefully contrasted with academic librarians' closely related but importantly different roles. Unlike a library, such systems (and especially Facebook) are not motivated to provide things that are in the interests of the public good. As Fister writes:

"The thing is, Facebook literally can’t afford to be an arbiter. It profits from falsehoods and hype. Social media feeds on clicks, and scandalous, controversial, emotionally-charged, and polarizing information is good for clicks. Things that are short are more valuable than things that are long. Things that reinforce a person’s world view are worth more than those that don’t fit so neatly and might be passed over. Too much cruft will hurt the brand, but too little isn’t good, either. The more we segment ourselves into distinct groups through our clicks, the easier it is to sell advertising. And that's what it's about."

These are not new points but they are well stated and well situated. I particularly like the point that lies and falsehoods are not a reason to censor a resource in and of themselves. We need the ugliness in order to better understand and value the beauty, and we need the whole story, not filtered parts of it that suit the criteria of some arbitrary arbiter. As Fister writes:

"There’s a level of trust there, that our students can and will approach a debate with genuine curiosity and integrity. There’s also a level of healthy distrust. We don’t believe it’s wise to leave decisions about truth and falsehood up to librarians."

Indeed. She also has good things to say about personalization:

"If libraries were as personalized, you would wave your library card at the door and enter a different library than the next person who arrives. We'd quickly tidy away the books you haven't shown interest in before; we'd do everything we could to provide material that confirms what you already believe. That doesn't seem a good way to learn or grow. It seems dishonest."

Exactly so.  She does, though, tell us about how librarians do influence things, and there's only a fine and fuzzy (but significant) line between this and the personalization she rejects:

"Newer works on the topic will be shelved nearby that will problematize the questionable work and put it in context."

I'm not sure that there is much difference in kind between this approach to influencing students and the targeted ads of Google or Facebook. However, there is a world of difference in the intent. What the librarian does is about sense making, and it accords well with one of the key principles I described in my first book of providing signposts, not fenceposts. To give people control, they have to first of all have the choices in the first place, but also they need to know why they are worth making. Organizing relevant works together on the shelf is helping students to make informed choices, scaffolding the research process by showing alternative perspectives. Offering relevant ads, though it might be dishonestly couched in terms of helping people to find the products they want, is not about helping them with what they want to do, but exploiting them to encourage them to do what you want them to do, for your own benefit, not theirs. That's all the difference in the world.

That difference in intent is one of the biggest differentiators between a system like the Landing and a general-purpose public social media site, and that's one big reason why it could never make any sense for us to replace the Landing with, say, a Facebook group (a suggestion that still gets aired from time to time, on the utterly mistaken assumption that they duplicate each other's functionality). The Landing is a learning commons, a network of people that, whatever they might be doing here, share an intent to learn, where people are valued for what they bring to one another, not for what they bring to the owners and shareholders of the company that runs the site. Quite apart from other issues around ownership, privacy and functionality, that's a pretty good reason to keep it.