The interoperability of social networks

2010-11-10

Google recently added a caustic warning message when users attempt to export their Google Contacts to Facebook:

Hold on a second. Are you super sure you want to import your contact information for your friends into a service that won’t let you get it out?

Facebook allows users to download their personal information (photos, profile info, etc) but has been fiercely protective of the social graph (you can’t download friends, etc). The downloaded data arrives in a .zip file – hardly a serious attempt to interoperate using modern APIs (update: Facebook employee corrects me/clarifies in comments here). In contrast, Google has taken an aggressively open posture with respect to the social graph, calling Facebook’s policy “data protectionism.”

The economic logic behind these positions is a straightforward application of Metcalf’s law, which states that the value of a network is the square of the number of nodes in the network*.  A corollary to Metcalf’s law is that when two networks connect or interoperate the smaller network benefits more than the larger network does. If network A has 10 users then according to Metcalf’s law its “value” is 100 (10*10).   If network B has 20 users than it’s value is 400 (20*20). If they interoperate, network A gains 400 in value but network B only gains 100 in value. Interoperating is generally good for end users, but assuming the two networks are directly competitive – one’s gain is the other’s loss – the larger network loses.

A similar network interoperability battle happened last decade among Instant Messaging networks. AIM was the dominant network for many years and refused to interoperate with other networks. Google Chat adopted open standards (Jabber) and MSN and Yahoo were much more open to interoperating. Eventually this battle ended in a whimper — AIM never generated much revenue, and capitulated to aggregators and openness.  (Capitulating was probably a big mistake – they had the opportunity to be as financially successful as Skype or Tencent).

Google might very well genuinely believe in openness. But it is also strategically wise for them to be open in layers that are not strategic (mobile OS, social graph, Google docs) while remaining closed in layers that are strategic (search ranking algorithm, virtually all of their advertising services).

When Google releases their long-awaited new social network, Google Me, expect an emphasis on openness. This could create a rich ecosystem around their social platform that could put pressure on Facebook to interoperate. True interoperability would be great for startups, innovation, and – most importantly – end users.

* Metcalf’s law assumes that every node is connected to every node and each connection is equally valuable. Real world networks are normally not like this. In particular, social networks are much more clustered and therefore have somewhere between linear and exponential utility growth with each additional user.

Next post: The “thin edge of the wedge” strategy
Previous post: Timing your startup

Views expressed in “content” (including posts, podcasts, videos) linked on this website or posted in social media and other platforms (collectively, “content distribution outlets”) are my own and are not the views of AH Capital Management, L.L.C. (“a16z”) or its respective affiliates. AH Capital Management is an investment adviser registered with the Securities and Exchange Commission. Registration as an investment adviser does not imply any special skill or training. The posts are not directed to any investors or potential investors, and do not constitute an offer to sell -- or a solicitation of an offer to buy -- any securities, and may not be used or relied upon in evaluating the merits of any investment.

The content should not be construed as or relied upon in any manner as investment, legal, tax, or other advice. You should consult your own advisers as to legal, business, tax, and other related matters concerning any investment. Any projections, estimates, forecasts, targets, prospects and/or opinions expressed in these materials are subject to change without notice and may differ or be contrary to opinions expressed by others. Any charts provided here are for informational purposes only, and should not be relied upon when making any investment decision. Certain information contained in here has been obtained from third-party sources. While taken from sources believed to be reliable, I have not independently verified such information and makes no representations about the enduring accuracy of the information or its appropriateness for a given situation. The content speaks only as of the date indicated.

Under no circumstances should any posts or other information provided on this website -- or on associated content distribution outlets -- be construed as an offer soliciting the purchase or sale of any security or interest in any pooled investment vehicle sponsored, discussed, or mentioned by a16z personnel. Nor should it be construed as an offer to provide investment advisory services; an offer to invest in an a16z-managed pooled investment vehicle will be made separately and only by means of the confidential offering documents of the specific pooled investment vehicles -- which should be read in their entirety, and only to those who, among other requirements, meet certain qualifications under federal securities laws. Such investors, defined as accredited investors and qualified purchasers, are generally deemed capable of evaluating the merits and risks of prospective investments and financial matters. There can be no assurances that a16z’s investment objectives will be achieved or investment strategies will be successful. Any investment in a vehicle managed by a16z involves a high degree of risk including the risk that the entire amount invested is lost. Any investments or portfolio companies mentioned, referred to, or described are not representative of all investments in vehicles managed by a16z and there can be no assurance that the investments will be profitable or that other investments made in the future will have similar characteristics or results. A list of investments made by funds managed by a16z is available at https://a16z.com/investments/. Excluded from this list are investments for which the issuer has not provided permission for a16z to disclose publicly as well as unannounced investments in publicly traded digital assets. Past results of Andreessen Horowitz’s investments, pooled investment vehicles, or investment strategies are not necessarily indicative of future results. Please see https://a16z.com/disclosures for additional important information.