Today I tool a picture of rock moss using macro lens. Looks interesting…

Need to register on the website to get access to information, but don’t want to receive annoying spam in your inbox? 10 minute mail provides single use disposable e-mail which allows you to get through registration, receive confirmation e-mail and active account using a code supplied within e-mail message.

Downsides? Make sure that you keep the password safe. Otherwise you won’t be able to use password reset functionality

If you find it difficult to memorize hundreds of login details for each site, try free browser extension LastPass and your login and password details will be stored in company servers and will be accessible from any computer you own.

DBpedia is a community effort to extract structured information from Wikipedia and make it accessible programmatically. That data could be queried using a SPARQL – data query language similar to SQL which works with semantic data sets.

The following gets a list of stations. Dataset includes resource name, geographic location and station name in one or more languages.

Sample code connects to DBPedia SPARQL sparql endpoint. This endpoint also provides web based query tool where you can type your query and preview results in HTML, XML or some other formats. Sample code executes the following SPARQL query:
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.NET software development

• Package Management For .NET
  Gems package management modeled after Ruby allows easy .NET library installations

• Reflectoron in Prism: a WPF MVVM tutorial

• What’s New in Visual Studio 2010
  the Quick Reference Poster

• XAML is like HTML – don’t always rely on auto-generated markup
  at .NET Zone

• Xaml Meets ASP.NET MVC
  Create databound visualizations with Xaml + ASP.NET MVC using XamlAsyncController

Android

• Google demos codeless Android development tool for students

• How To Enable the Android Market in the Google Android Emulator

Linux

• A Perfect Image Juggler: Geeqie – Linux Magazine Online

• How To Install Latest Intel Driver 2.12 On Ubuntu 10.04 (Lucid Lynx)
  Allows to enable hardware acceleration for playing h.264 video

• Linux Today – Editor’s Note: What Good is it if They Don’t Know it’s Linux?

Science

• What Caffeine Actually Does To Your Brain | Lifehacker Australia

Software

• NoSQL Database CouchDB Turns 1.0
  New version offers Microsoft Windows support, authentication system and replicator options

• The best Chrome extensions, according to the Google Chrome team – Download Squad

Web

• FreeVideoLectures: 700+ Free Online Video Courses From Leading Universities
  All courses are categorized by Subjects and Universities. Subjects range from the usual Anatomy, Economics, and History, to new courses like IC Design, Signals Systems, and Web Designing.

• FullFeeds: Turn Partial RSS Feeds Into Full Feeds

Web development

• 5 Web Files That Will Improve Your Website

• HTML5 Demos and Examples
  A nice collection of working examples of HTML 5 features for different browsers

• How to Create a Web Service in a Matter of Minutes
  Shows how Yahoo’s YQL queries could be used for this

• Not Using jQuery JavaScript Templates? You’re Really Missing Out
  by Rey Bango

• The 960 Grid System Made Easy

• The Only HTML5 Resources You Need for Getting Up to Speed
  15 web resources to help you on your quest in getting current about the impending technology that’s already being adopted by major web browsers and leveraged in large sites such as Google

• Velocity: TCP and the Lower Bound of Web Performance
  by High Performance Web Sites

• When One Word Is More Meaningful Than A Thousand – Smashing Magazine

• WordPress Theme Frameworks: Options You Should Consider
  WordPress theme frameworks–which are themes that you can use as a foundation for the creation of your own themes–can drastically boost your performance and efficiency.

• jQuery JavaScript Templates Tutorial: Inline Expressions and Code Blocks
  by Rey Bango

Quite often you need to copy and paste commands from browser or from other application into windows command line window. Unfortunately Ctrl+V shortcut does not work by default. In order to paste command you have to open windows menu and select “Edit -> Paste” using mouse or by pressing Alt+Space. Alt+E, Alt+P. To use standard Ctrl+V shortcut you can use open-source AutoHotkey utility.

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Free aLastFM application available from Android market allows you to play Last.fm directly from Android phone. Tuning options include tuning music by artist name, tag, user recommendations, friend recommendations or your own playlist. Free last.fm service allows you to listen only 30 tracks per day, but you can get unlimited listening my getting a subscription which costs just US $3 per month.

Shutter is open source utility for Linux which allows you to take screenshot of any area of your screen. Also you can add annotations to image using circle and rectangular shapes, arrows, numeric references. Images could be saved to local disk or uploaded to public image hosting, such as imageshack.us or FTP server.

Installation in Ubuntu 10.04 from command line is easy:

sudo apt-get install shutter libgoo-canvas-perl

Second package is required by image editor. This utility is somewhat similar in its functionality to commercial product SnagIt or open source GreenFlog available for Windows platform. Very convenient if you need to drop an e-mail showing a bug in application, add application screenshot to blog, etc.

Related links:

• Greenshot – an open source screenshot grabber

Tourists visiting Australia are looking for convenient and inexpensive way to call their relatives back home. There is a lot of prepaid calls sold in shops, but in that case you need to use payphones which costs you AU$0.50 for a local call or call from mobile to card access number, which could be even more expensive. Another solution is to get SIM card for your existing phone. Generally mobile providers offer very low cost phone calls within their mobile network and reasonable price for calling other Australian numbers. Prices could be outrageously expensive when it comes to calling overseas from mobile.

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If you are using X.509 certificate for WCF communication layer you may get the following errors when certificate server becomes unavailable. It may result in the following runtime exceptions:

The X.509 certificate The certificate that was used has a trust chain that cannot be verified. Replace the certificate or change the certificateValidationMode. The revocation function was unable to check revocation because the revocation server was offline

The X.509 certificate E=XXX, CN=XXX, OU=XXX, O=z, L=zzzz, S=NSW, C=AU chain building failed. The certificate that was used has a trust chain that cannot be verified. Replace the certificate or change the certificateValidationMode. The revocation function was unable to check revocation because the revocation server was offline.

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XPath is a convenient way to query XML documents for data. Here is an example of processing XML document containing two namespaces using System.Xml.XPath library provided as part of .NET framework. If you have XML namespace defined you need to create an instance of XmlNamespaceManager and add namespace URLs with their prefixes using AddNamespace commend. During XPathSelectElement call this namespace prefix should be used within XPath query string.
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