optimisation web :
http://developer.yahoo.com/performance/rules.html
http://www.willdurand.fr/optimiser-les-performances-de-son-site-web-pariez-sur-le-frontend/


performances apache :
http://www.howtoforge.com/configuring_apache_for_maximum_performance


CSS !important:
http://www.aidenet.com/css/css12c.htm


font converters :
http://www.fontsquirrel.com/fontface/generator


certificats ssl gratuits :
http://www.startssl.com/
http://www.cacert.org/
https://letsencrypt.org/


Wamp Server