Jakob Nielsen's
Alertbox, September 5, 1999:
Reputation Managers are Happening
After years of predicting the rise of reputation managers, they finally seem
to be happening.
A reputation manager is an independent service that keeps
track of the rated quality, credibility, or some other desirable metric
for each element in a set. The things being rated will typically be
websites, companies, products, or people, but in theory
anything can have a reputation that users may want to look up before
taking action or doing business.
The reputation metrics are typically collected from other users who have
had dealings with the thing that is being rated. Each user would indicate
whether he or she was satisfied or dissatisfied. In the simplest case, the
reputation of something is the average rating received from all users who
have interacted with it in the past. Other systems are possible, as
discussed below.
Current Reputation Managers
- eBay (auction site)
keeps reputation ratings
for all the people who offer things for sale on the site. After
buying a collectible in an auction, you can go back to the site
and rate the seller for prompt shipping and whether the physical item actually
matched the description in the auction. This is the most literal
of the current reputation managers: eBay literally
keeps track of the reputation of each seller. Prospective buyers can feel
safe bidding on items from people they have
never heard of: if the reputation ratings show that many previous buyers
were treated well and thought that the textual descriptions matched the
actual collectible, then the seller is almost certainly honest and worth
dealing with. Also, sellers are highly motivated to offer great service
to every single buyer: a single customer with a bad
experience will ruin a seller's perfect reputation rating and multiple
bad experiences (quickly followed by negative ratings) will put a seller out of business for good.
- Epinions (electronic
opinions) is the most interesting new reputation manager: it collects user
feedback, reviews, and ratings for a wide range of products and services
- all the way from laptop computers to museums in New York. When you want
to buy something, you go to Epinions first to check the reputation of the
different models you are considering. You can also check the reputation
of the manufacturer's other models: do they in fact work as advertised
or do people experience problems after owning something for awhile?
Despite all the hype about ecommerce, it is so hard to buy anything on the
Web today because you never know whom to trust. It has close to zero value
when somebody who sells a product claims that it is great or that it meets
certain needs. Having an independent service to guide customers to good
products and warn them against lemons will be one of the most important
enablers of ecommerce.
- Google
(search engine) maintains a reputation rating for every site on the
Web and uses this data to sort the return set for searches to place
the highest-quality hits on top of the list. Google derives its estimate of
a website's quality from the number of other sites that link
to it (as well as some fancy math that gives greater weight to links from
more important sites and less weight to links from minor sites).
- Go (search engine
formerly known as Infoseek) is adding a human touch to the service in the
form of so-called Guides: individuals who are experts in a certain area
and provide Go with their ratings and comments on sites within that
area. These comments combine to form the reputation of the
sites. But more interestingly, the Guides themselves are rated for the
quality and value of their contributions and rise through the ranks
based on these reputation metrics. More advanced Guides (with high ratings)
are responsible for larger areas of the service and have some form of
management responsibility for lower-rated Guides.
- Slashdot (discussion board)
lets users rate the usefulness of the various comments in a discussion
thread. When reading a thread, you can set an option to show
only the N highest-rated postings, thus significantly
increasing your experienced signal-to-noise ratio. Unfortunately, the
ability to filter out poorly rated comments is not turned
on by default, so only diligent users who study the slightly confused user interface
will discover this useful feature. Slashdot also awards
regular users "karma" points which are a true reputation manager:
if you have done well in the past, you have high karma, which again
means that your actions carry more weight.
- Third Voice
is an annotation service that allows users to write comments on any Web page in a
transparent overlay layer that is shown to other users of the service. These
annotations are not under the control of the website owner since they come
directly from the Third Voice server. The annotations combine to a kind of
reputation for each site: for sure, they can be used to warn unsuspecting
visitors about shoddy products and false or misleading advertising. Since
the annotations are natural language text, they are less useful for finding
the best sites or doing any kind of computations.
Reputation Manager Problems
When collecting feedback from random people, the results can be random as
well. Third Voice suffers from the traditional flaming problem of Usenet as
well as the low signal-to-noise ratio of chat rooms. You never know whether
the person who posted a comment actually knows what they are talking about
or whether you are wasting your time reading some bozo's rantings.
Amazon.com pioneered
the idea of customer reviews, but has been plagued by unreliable
reviews
(an author's enemies post a flood of negative reviews; followed by the
author's friends who post glowing reviews). Also, users never know whether
they can trust reviews that are posted as part of a site that profits from
selling the product.
Google and eBay avoid these problems by aggregating ratings across a very
large sample. Google also benefits from the fact that Web authors are
reluctant to include a link unless they actually want to guide users
to the destination site. Even if there are some spurious links, they vanish
when doing statistics across a billion pages with several billion links.
eBay collects reputation rankings from the specific people who actually
bought something from a seller, thus avoiding comments from random users.
Epinions is a double reputation manager: not only does it
rate products and services, it also rates reviewers.
After users have read a review, they are encouraged to vote on whether they
found the review useful or not. In showing lists of reviews to users,
Epinions places the most highly rated reviews on top, thus assuring that
readers will focus on the best content. Also, reviewers build up status
depending on the user feedback on all their reviews, meaning that
people will be reluctant to contribute low-quality reviews to the service.
A final interesting twist is that users earn a micropayment every time
somebody reads one of their reviews. Thus, people are motivated to write
valuable reviews, not just to gain a high reputation rating, but also to
earn money.
Future of Reputation Managers
I see reputation managers as core to the success of the Web. As we get more
sites, more content, and more services online, users need a way to learn what
is credible and useful. Quality assessments must become an explicit
component of most Web user interfaces. It is not sufficient to list
millions of items for sale and leave it to the user to determine what
they need. Everybody is not equal.
Reputation managers overcome the complaint against shop bots
that they purely focus on price and ignore customer service. Once it can
include
an independent source of rating data, a shop bot can show users:
- what they can buy
- where they can buy it
- how much each option costs
- how good each option is
- what level of customer service to expect from each vendor (e.g., average
fulfillment delay, whether shipments usually arrive in good shape, whether
the vendor is decent in dealing with returns, etc.)
Reputations managers will thus cause a renaissance for good customer
service: the way a company treats any individual customer will
be fed directly back into its reputation ranking and will influence its
future sales.
Investors will finally get a handle on intangible concepts like "brand equity"
and "goodwill": just go to the reputation manager and look up how customers
rate the company and various aspects of its service. If a company does
something wrong, its reputation statistics will rapidly drop, immediately followed
by a massacre of the stock valuation. If a few Belgians become sick
from drinking a soft drink, then the manufacturer may lose billions on
Wall Street five minutes later. Another reason reputation managers will
contribute to highly improved product quality and customer service.
Disclosure: I am on the advisory boards for Epinions and
Google.
Previous: August 22, 1999: Do Interface Standards Stifle Design Creativity?
Next: September 19, 1999: User-Supportive Internet
Architecture
See Also:
Complete list of other Alertbox columns