Convert timestamp to date

http://timestamptodate.com/

23 najlepsze sztuczki z wykorzystaniem SSH

http://jakilinux.org/aplikacje/23-najlepsze-sztuczki-z-wykorzystaniem-ssh/

RDFa – Linked Data in HTML

RDFa is an extension to HTML5 that helps you markup things like People, Places, Events, Recipes and Reviews. Search Engines and Web Services use this markup to generate better search listings and give you better visibility on the Web, so that people can find your website more easily. http://rdfa.info/

DoctrineExtensions – Translator

You love Doctrine2 and its explicit way of doing things, but miss i18n from Doctrine1 and Propel? Want to make rich i18n forms or retrieve all your entity translations in one simple query?

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