Or, if you work at certain companies, you do. Or could.
I had some interesting conversations about privacy at ALA’s Midwinter Meeting, which got me thinking about which companies probably know the most about me.
I’ve thought about my own “walled garden” a lot and worked through what I’ll share publicly, privately, and pretend privately. Most things I share publicly, and you can see a list of many of the sites I use on my FriendFeed account. It’s not difficult to piece together information about me by tracking these sites, but overall I’m more careful with specific things like location information.
The routine I’ve worked out is that Facebook is my only truly private posting area, although I do occasionally post some pictures for “friends and family only” on Flickr. Since I still don’t trust Facebook to not re-publish or claim ownership of “private” content (like pictures and videos), I don’t post anything original there except status updates and comments on friends’ updates. Even then, I don’t kid myself that those things are truly private (they’re the “pretend privately” I mentioned above). That’s why I’ve become a lot more selective about who I’ll friend there, and why I post some Foursquare location updates there (rather than on Twitter).
So if you can find out so much information about me publicly, which companies know the most about me? It’s been a very thought-provoking exercise to come up with the following list. I tried to rank the companies in order of how much daily information I think they’re accumulating about me, but it’s tough to decide if “what I’m eating” equals “what I’m watching.”
- Cell carrier/cellphone maker — they know my location at any given time, plus all of the data that goes through my phone (and I don’t have a landline, so everything goes through my cell)
- Cable company = they know what I watch on TV and what I surf on the net
- Bank = they know most of the places where I spend my money
- Credit cards = they know a lot of places I spend my money
- LISHost — hosts my website and email, which would include a lot of receipts for online purchases
- Google = knows most of the things I search for and many things I read (via <http://reader.google.com/”>Google Reader); even though I don’t use Gmail, any email I send to Gmail users is in their archives
- Amazon = knows about a lot of things I purchase and read (including via my Kindle)
- Facebook = knows a lot about what I say about myself via status updates and who my friends are
- FriendFeed (now owned by Facebook) = aggregates a lot about what I say about myself publicly online, plus which conversations and people I watch on the site
- Netflix = knows a lot about what I watch
- Foursquare = knows some about where I am/go
- Flickr = knows a lot about where I am/go, who my friends/contacts are, and what interests me
- Twitter = knows my network and who I interact with the most
- Health care provider = I’m lucky that I’ve been relatively healthy, but my provider(s) know about any problems
- Delicious = knows a lot about sites I’ve visited and want to remember
- Dopplr = knows my trips and some of my friends
- Evernote = knows about some things I want to remember, although I haven’t put much personal information there yet
- Illinois Department of Transportation (IDOT) = I don’t drive nearly as much as I used to anymore, but IDOT knows when I go on tollroads
Obviously I’m okay with what I share publicly, and in many respects, there have been enormous benefits to doing that, but I have very little control over what these companies do with the information they’re collecting about me, and I don’t trust any of them. I think the only company I do trust is LISHost, which hosts my website and email (thanks, Blake!). How much do I really care that Facebook keeps my status updates forever, whereas my email provider keeps my more private messages? And how much do I worry that my private email still goes through my cable provider’s network to get to LISHost?
I’m trying to recognize which companies are collecting ambient information about me, without me proactively posting anything. I’m sure I’m missing some, though. If you’ve thought through this yourself, what’s not on my list?