After reading about Internet Address Book on mashable.com and learning it's focused on SNS and it's not U.S.-based, I decided to try it out.
One creates an account via email. Then using this account one lays claim to email addresses, urls, and membership in various SNS. This information can be supplemented by additional identifying details provided to the service. This screenshot shows the outcome of a few minutes work. I need to use a screenshot because I could not find or the service does not provide each user with a personal URL, which surprises me.
At this barebones level, except for the lack of a personal URL, this service is similar to ClaimID, Ziggs, and ZoomInfo. It's what the companies do with this voluntary self-identification that is interesting.
ClaimID focuses on disambiguation - there is emphasis on identifying information on the web that may appear to pertain to you but is actually about someone with the same name or slight variant. The service is free. At this point ClaimID is more about maintaining consistency with evolving non-proprietary digital identity frameworks than about collecting information about users that they can monetize. Along with attentiontrust, I reckon the tide of history is with them, but that's another story.
Ziggs and ZoomInfo are all about collecting information about people and then monetizing the data.
Ziggs focuses on helping you maintain and publicize a professional profile. If you want to be found by a potential client or headhunter, this is the way to go. The basic service is free. The paid service is essentially SEO for your name/personal brand. You pay Ziggs five dollars a month, and they pay Google and Overture. For me, this would be a pure arbitrage with the five dollars going straight to Ziggs (assuming a combination of low-cost keywords and/or zero clickthroughs) with no cost of deliver of service. I wonder how it works for someone who wants to build a personal brand in a category with very expensive keywords such as these. Maybe Ziggs is best for getting the word out about John Doe but not necessarily connecting him to his expertise in, say mesothelioma.
Like Ziggs, ZoomInfo focuses on helping you publicize yourself; additionally, it encourages you to place yourself in the context of your professional network. The basic service is free. The paid service is the mirror image of Ziggs. ZoomInfo monetizes by mining the data and selling enhanced search to people who want to find professionals, i.e. recruiters. One quick indication of this recruiter focus can be seen by the message they place near where you input you email address: "An email address is necessary to . . . allow you to be contacted by recruiters." It has a different starting point than LinkedIn (which seems to have a better way of collecting social network information than does ZoomInfo) but it seems to end up in the same place - a database of resumes with all sorts of self-identified links between people and companies access to which can be sold to recruiters. It's mining the relationship network that allows these sites to offer something a clever recruiter to offer value-added service, finding the individuals who have not placed their resumes on a job listing board and are therefore available to one and all.
InternetAddressBook is a Europe-based service and therefore does not have implicit within it assumptions that U.S.-based services often have; for example, everyone resides in one of the 50 states. An earlier-generation address-book site like Bigfoot has a U.S. bias, and is barely workable without identifying a state of residence. The service is geared toward collecting information about users of SNS. The service is free. As more people become more heavily involved in a variety of SNS, information that links one individual with multiple SNS -- MySpace, Yahoo-Flickr-del.icio.us, Friendster, LinkedIn, the many smaller SNS gaining traction outside of the US such as Orkut and Bebo -- will be valuable. I am still having trouble figuring out monetization for non-professional SNS. This service which is a degree removed is even harder for me to understand.
Japan's big SNS is mixi. It's a closed, invitation-only site and does not fit in well with any of the above. Even if someone explicitly ties themselves to a mixi account it is not broadly useful. Non-members of mixi cannot see even the most basic information, and members of mixi can only see the information that the user has chosen to reveal to each class of user - friend, friend of a friend, other (i.e. mixi members who have not been specifically identified as falling in one of the first two categories). This link http://mixi.jp/show_friend.pl?id=863706 should show my profile to you if you are a member of mixi, but show you only a generic landing page if you are not. I think this is a very good thing and believe there is room for more SNS like mixi: invitation only, default level of privacy is high, not indexed by search engines. People can have a public identity accessible via Google as well as a less-public (private would certainly be an overstatement) persona.
As for me, I am thinking everything I do on the internet is recorded; that's for sure. Lately I have been wondering if Japan has as many CCTV as other places, but just keeps quiet about it.
follow up:
* after the above was written, I found the dedicated member url - example
* recruiter's perspective on ZoomInfo Vs. LinkedIn