Walyouというブログに書いているイスラエルのブロガー、Tal Siachは、ツールバーのない新しいバージョンのStumbleUponを実際に利用できたごく少数のユーザーの1人のようだ。新しいバージョンは水曜日に全面的にローンチが予定されているものの、私の知っている人間はまだ全員が古いバージョンしか見ていない。現行版は作動させるためにツールバーをダウンロードしてインストールしなければならない。Talが新しいバージョンに出くわして、くわしくレポートしてくれたのはありがたい。



I use StumbleUpon on a daily basis, so I was surprised to see a brand newdesign and face on one of my favorite social networking sites. It alsocame as a shock since TechCrunch recently reported that Ebay showed their interest in selling StumbleUpon.

Since it came so sudden, I spoke to some of my friends and realized theydo not see the same new face that I see on my monitor. I assume that StumbleUponmust have wanted to slowly bring it up on various users, test it, get feedbackand then provide it to their massive community. I am extremely fortunateand lucky to be one of the selected to test the design.

I am still not sure what all the changes are, but here are a few I noticedimmediately:

New Homepage Look

Once I enter the new StumbleUpon Homepage, I noticed that it has had acomplete makeover.

As you can see in the screenshot below, there is an innovative header tothe site and all of the sites that are featured here have 5 stars.

Stars for each Discovery (Submission)

Every time a story has been discovered it ranks on a 0-5 stars scale whichmakes up the score of the Submission. This of course will be based by thenumber of thumbs up, reviews, domain popularity and several additionalparameters within the StumbleUpon algorithm. You can get some additionalinsights on the latter in Tim Nash excellent post – Stumbleupon mathematicsfor stumblers (

In the second screenshot below, different scales are presented, and thenumber of reviews do not decide the popularity alone. You can see thatthe last submission received 24 reviews yet still did not rank well andhas 0 stars.

This refers per submission and doesn’t necessarily say anything about thedomain itself; the same site can have additional posts with varying starsrank.

Discovery Page

Seems like StumbleUpon gives a Featured Icon to any post that has beendiscovered. At first glance I thought it is a mark to show if posts havebecome hot or not; however after a second look I am fairly certain itsjust a mark to show the URL has been discovered, and the number of starsare the real indication whether a post went popular or not in the StumbleUponalgorithm.

I just recently stumbled an interesting post about via Orli Yakuel’s blog.

Below you can see the discovery page of that submission with the FeaturedIcon and the user who discovered on the right. Underneath that Stumblerwho discovered it you will see others who liked it. Since I just discoveredit, it is only me ;).

After people review the post they can add the specific site as a placefor cool resources and with that get more similar stuff they like in thefuture – improving the recommendation engine.
For example, I clicked the question above, and marked as asource I would like to see more from the site. The picture below showsthe changes on what happens where the “do you like this page from…” is.

Featured Posts in Categories

In the new StumbleUpon design, the Categories are listed on top, whilethe ranked posts based on stars rating and enough algorithm popularityare listed within their category.

In this screenshot example below: all the technology related posts thatwere featured have subcategories like Electronics inside technology. Theitems listed here aren’t necessarily new ones, and you can find links thatare rather old but with good rankings from the StumbleUpon community.

StumbleUpon users can now check the selected articles, pictures and videosthat the community marked as Popular. By placing the categories on topof the page, StumbleUpon encourages users not only to stumble random stuffdirectly from the toolbar but actually go and choose a list of popularstumbles themselves of what they would like to read, see or watch.

If you ask me, maybe StumbleUpon wants to encourage users to use the sitemore like other social bookmarking sites like Digg, Reddit or Mixx.

Transparency Ranking in your Subscriptions and Blog Page

From now on, you and others can see the number of stars on your own discoveriesand vice versa. Moreover, you can see the star action in actual sectionsas well, so it may encourage you to check additional stumbles.

Well, these are some of the changes I saw so far and there are probablyothers. With time, additional information will be revealed, and as I mentionednot all users can see the new design in the beginning. I am not sure whatthe reason is, but it is probably to beta test its effectiveness first.

Another addition we may see is what Tec Crunch ( of StumbleUpon’s desire to develop their toolbar for theweb instead of an install toolbar. They must be missing a lot of usersby requiring the installation, which many want to avoid.

My own new design assumptions have not been confirmed by the StumbleUponstaff and are my own opinions and beliefs. If there is something yo
u havefound out which I have missed, I would love if you would share in the commentsfor all the readers to read as well.


(翻訳:Namekawa, U)