Utilidades online

COMPRIMIR
http://www.puntogeek.com/2013/03/27/13-herramientas-online-para-minificar-codigo-php-css-y-javascript/
http://javascriptcompressor.com/
http://csscompressor.com/

COMPARAR FICHEROS
http://www.scootersoftware.com/

GRAFICOS
http://www.colorpicker.com/
Captura de pantalla: https://www.imtoolpack.com/ 
Editor gráfico: http://fotoflexer.com/

MULTIMEDIA
http://video.online-convert.com/convert-to-flv
http://savevideo.me/es/

CREAR LOGOS
http://www.squarespace.com/
https://withoomph.com
http://www.hipsterlogogenerator.com/

PLANTILLAS HTML
http://html5up.net
http://templated.co
Para Blogger: http://btemplates.com

CHECK WEBS
http://ipadpeek.com/ // Probarlo en un ipad GOOGLE: PAGE SPEED
https://developers.google.com/speed/pagespeed/insights/?url=http%3A%2F%2Fwww.midominio.com&tab=desktop