webdev tools

http://4webhelp.net/

http://developers.evrsoft.com/

http://www.yougetsignal.com/

http://www.dnsgoodies.com/ [ip , ping , tracert ]

http://www.uptimerobot.com/ [server uptime ]

http://gtmetrix.com/ [ταχύτητα που φορτώνεται η σελίδα ]

http://tools.pingdom.com/

css tools

50+ Online CSS Tools for Web Developers and Designers

http://www.vanseodesign.com/css/css-positioning/