Font Awesome – The iconic font designed for use with Twitter Bootstrap

http://fortawesome.github.com/Font-Awesome/

A fast introduction to Symfony2

http://www.ens.ro/2012/03/12/a-fast-introduction-to-symfony2/

Best Practices for Speeding Up Your Web Site

The Exceptional Performance team has identified a number of best practices for making web pages fast. The list includes 35 best practices divided into 7 categories.

Use virtuals forms with Symfony2

http://odolbeau.fr/use-virtuals-forms-with-symfony2.html

Wynalazki 20 wieku w poszukiwaniu przepisu na przyszłość

http://miropress.wordpress.com/2009/12/28/wynalazki-20-wieku-w-poszukiwaniu-przepisu-na-przyszlosc/

List of HTTP header fields

http://en.wikipedia.org/wiki/List_of_HTTP_header_fields

Zarządzanie ładowaniem baterii

http://www.ubuntu-pomoc.org/zarzadzanie-ladowaniem-baterii/

HTML5 section, aside, header, nav, footer elements – not as obvious as they sound

http://www.anthonycalzadilla.com/2010/08/html5-section-aside-header-nav-footer-elements-not-as-obvious-as-they-sound/

When to use the HTML5 SECTION element and when to use ARTICLE, ASIDE, and DIV

The new HTML5 SECTION element can be somewhat confusing. If you’ve been building HTML documents before HTML5, chances are you are already using the DIV element to create structural divisions within your pages and then style the pages with them. So it might seem like a natural thing to simply replace your existing DIV elements ...

HTML5 – Techniques for providing useful text alternatives

http://dev.w3.org/html5/alt-techniques/#tree A simple alt text decision tree