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Placestreaming
The guys at Brightkite came up with the idea of capturing user-generated content and associating it to a particular place where the user is located. Quoting their blog post: Placestreaming, as in the...
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Adegga and AVIN
Do you enjoy wine? You’re gonna love Adegga, the place where you can discover new wines by looking at other people’s tastings and findings. Adegga just came out of a closed beta and right now anyone...
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Cloud Balancer
The latest Amazon S3 blackout made me think what could be done to try to solve this problem, when your application depends on S3 or any other cloud service. Does this mean that you should all stop...
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How to share a secret
“How to Share a Secret” is the title of paper written in 1979 by Adi Shamir (best known for his work on the RSA algorithm). The paper describes a method for dividing information in smaller pieces so...
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Small experiment
This is a very short experimental post. Published via tarpipe.Posted in Software
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A possible future for Chrome OS
I’m writing this after building Chrome OS from scratch and running it from a USB drive. In fact, what I built and ran wasn’t Chrome OS but instead Chromium OS. There’s a big difference not just in the...
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foursquare is finally available in Lisbon
That was about time! They added Lisbon and a bunch of other cities around the world. I’m finally using the Android application and, so far, I’m enjoying it. Check out my foursquare profile and friend...
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Cliqset FeedProxy and the ActivityStreams format
Great news: the Cliqset FeedProxy tool will normalize feeds from more than 70 other services into new feeds in the ActivityStreams format. It may just be an initial inroad to interoperability between...
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DecentralizedAddresses Chrome extension
After much discussion around the @replies subject I started thinking about a system that could automatically resolve social network addresses no matter where they appear. I then decided to try the...
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Your Google Alerts can be deleted by anyone
I found out the hard way that my Google Alerts can be deleted by anyone, if they have access to the “Remove” URL. Here’s how it works: Google will send you e-mail alerts whenever it finds results for...
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JavaScript filesystem database
I couldn’t resist and, after many conversations with Mário Valente, I challenged myself to build a complete JavaScript filesystem based database from scratch. In short, something like CouchDB but...
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node-fs
Following my previous post about recursive directory creation with nodejs, I created the node-fs repository on github. node-fs is a way to extend nodejs original fs library, adding recursive directory...
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FPC: a floating-point compressor
FPC is a very fast lossless compressor with better results than most traditional algorithms: FPC compresses linear sequences of IEEE 754 double-precision floating-point values by sequentially...
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Drinking from the firehose
Some firehoses to drink read from, other than twitter’s: Google Buzz, through their activity firehose API methods; FriendFeed, using their real-time updates methods. While the first works via...
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Blog posts firehoses
Three more firehoses to get all blog posts from the following platforms: blogger posts, through their changes.xml; tumblr posts, through superfeedr‘s track feature; WordPress.com posts, through their...
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node-fs npm package
node-fs is now available as an npm package. Just run npm install node-fs, require(‘node-fs’) and have fun.Filed under: Software Tagged: node, node-fs, npm, package
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MapReduce related patterns
Here’s a list of possible MapReduce related patterns I’ve been thinking about: map-update: update each mapped document and emit its updated or original version; map-delete: delete each mapped document;...
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RethinkDB looks promising
RethinkDB is out – an open-source distributed database RethinkDB is built to store JSON documents, and scale to multiple machines with very little effort. It has a pleasant query language that supports...
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Why refactoring?
Interesting thoughts about refactoring, starting with a comprehensive post by Jim Bird, stating what is not refactoring: Fixing any bugs that you find along the way is not refactoring. Optimization is...
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What is an empty XML element?
Following a very enthusiastic discussion today at work, here’s the proper definition of an empty XML element, according to the W3C Recommendation of 26 November 2008: [Definition: An element with no...
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