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3 minute videos help educators and influencers introduce complex subjects. Videos cover subjects that matter in the 21st century: technology, green, money and society.

A/B testing in Wordpress can be tricky - here's a video tutorial that shows how to do it.

Because individual transistors vary tremendously in their initial characteristics, a transistor checker is far more important to transistor circuitry than tube testers are to vacuum-tube circuits.

Cross-browser JavaScript solutions for a most of language elements. Examples and instructions how to make browser independent script.

Ever wanted to display the number of posts your blog has achieved for your blog readers or perhaps just for yourself? Or, what about the number of posts in a specific category? If so, I'll show you a quick and easy way to do just that, and we'll style up the output with a bit of CSS Level 2.1 the standard way.

Um excelente tutorial - Como os profesores podem integrar as ferramentas Google na sala de aulas

Nice video tutorial on page titles and tabs in Joomla, a content management system.

Whew a solution to getting my site optimized for search engines.

More stuff on Facebook privacy.

Facebook Privacy Changes: 5 Can't-Miss Facts.

" From time to time I need to debug OAuth-protected APIs, checking response headers and examining XML and JSON payloads. curl generally rocks for this sort of thing, but when the APIs in question are protected with OAuth, things break down. Likewise for benchmarking (ab, httperf, etc.) and exploration-isn't it nice to browse APIs that return XML in Firefox? This needn't to be the case. Enter oauth-proxy This is why I wrote oauth-proxy. It does what it says on the tin: it acts a proxy server that transparently adds OAuth headers to requests."