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Facebook Growth By Age Group: Share of College-Age Users is Declining
September 17 2008
With the U.S. now accounting for only about a third of all Facebook users, we are starting to see a gradual shift away from its original demographic of college-age users (18-25): 46% of all users are 18-25 years old, down from 51% in late May. The number of users in… read moreAugust 14 2008
With the iTunes App store now over a month old, I decided to look closely at data from the U.S. store over the last three weeks. While sales numbers are not publicly available, Apple publishes overall as well as category-level rankings. There are currently just over 1,800 (paid and free)… read moreFacebook Growth By Country and the Slowdown in App Usage
July 20 2008
With the Facebook Developers conference slated for later this week, I thought it would be a good time to give a brief update of a previous post on Facebook demographics. What follows are recently published number of users by country and region, along with growth rates for select regions and… read moreDeveloper Interest in the iPhone, Android, and Symbian
July 14 2008
With several hundred applications now available in the iTunes App store, I decided to consider alternate ways of gauging interest in the platform. Using MarkMail, one can quickly scan thousands of mailing lists and restrict the results to those related to software development. Based on the number of posts to… read moreJuly 07 2008
A research study released last week measures the proportion of web users running the most updated and secure browsers. With drive-by-downloads increasingly popular with malware distributors, web surfing with an older version of a browser is getting riskier. The study is based on data from Google's search and web application… read moreThe Suspended Facebook App Top Friends
July 03 2008
Techmeme and CNET are reporting that one of the most popular Facebook apps has been "suspended" due to security concerns uncovered by a user: Until Facebook suspended the Top Friends app, created by Slide, anyone could browse partial profiles of anyone else on Facebook who had added Top Friends to… read moreSeesmic Starts Adding Features
July 03 2008
Seesmic is company built specifically to encourage asynchronous video conversations. We spent a few hours recently with Seesmic founder and CEO Loic Le Meur, who kindly gave us an update on the company. Four weeks after opening its service to the public, Seesmic recently announced a product roadmap heavily influenced… read moreOn Friends, Followers, and the Top Twitter Users
July 03 2008
An easy way to increase Twitter's signal-to-noise ratio is to follow less people. I'm sure you've heard of Twitter users who follow several thousand twitterers. How they keep up with that many micro-blogs is beyond me. Unfortunately, spammers have discovered that to increase their "following", they simply follow thousands of… read moreEvil GIFs: Partial Same Origin Bypass with Hybrid Files
July 03 2008
Many web sites allow users to upload different types of files, in particular GIF and other image files. During a recent webinar to promote the upcoming Black Hat briefings in Las Vegas, a group of hackers announced the creation of a hybrid file that can potentially bypass a browser's same… read moreOn Friends, Followers, and the Top Twitter Users
June 30 2008
An easy way to increase Twitter's signal-to-noise ratio is to follow less people. I'm sure you've heard of Twitter users who follow several thousand Twitter users. How they keep up with that many micro-blogs is beyond me. Unfortunately, spammers have discovered that to increase their "following", they simply follow thousands… read morePartial Same Origin Bypass with a Hybrid File
June 30 2008
A lot of web sites allow users to upload many different types of files, in particular GIF and other image files. During a recent webinar to promote the upcoming Black Hat briefings in Las Vegas, a group of hackers announced the creation of a hybrid file that can potentially bypass… read moreThe Suspended Facebook App Top Friends
June 26 2008
Techmeme and CNET are reporting that one of the most popular Facebook apps has been "suspended" due to security concerns uncovered by a user: Until Facebook suspended the Top Friends app, created by Slide, anyone could browse partial profiles of anyone else on Facebook who had added Top Friends to… read moreBarCamp Nairobi Technology Survey
June 23 2008
BarCamp Nairobi took place this past weekend and according to several bloggers estimated that there were over two hundred participants. As part of BarCamp, Erik Hersman, kindly conducted a simple survey for us. In this short post, I will give a brief summary of the results of the survey. For… read moreMalware Centers and Offshoring
June 20 2008
Most studies place China, Brazil, and Russia among the leading sources of conventional and web-based malware. Depending on the type of malware involved, there is a good chance that one of these three countries is among the leading suppliers. Malware from these countries reflect local Internet usage patterns. In Brazil,… read moreJune 12 2008
Will Twitter and other micro-blogging services start resembling the blogosphere down the road? We are in the early days of micro-blogs and I still remember when Twitter was used mainly for "status" reporting. But more people are using Twitter instead of blogs, following links from trusted sources essentially using Twitter… read more
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