I always use firebug in firefox to check my web pages while developing my applications. I became use to of that. So I thought there must be some tool for IE also. So I googled on that and I came to know that IE Developer Toolbar is the tool that I works like firebug.
Download link : here
Same way I have searched Tools that work like Firebug on Crome & Safari. I have found that Web Inspector can help me to do so.
The Web Inspector allows you to view the page source, live DOM hierarchy, script debugging, profiling and more!
• Safari — Enable the Develop menu option in the Advanced preferences. Use the optional toolbar button, Develop menu or Inspect Element context menu to access to Web Inspector.
• Google Chrome — Enabled by default, use the Inspect Element context menu to access to Web Inspector.
For download & more info : here
reCAPTCHA is a free CAPTCHA service that helps to digitize books, newspapers and old time radio shows. Check out our paper in Science about it (or read more below).
A CAPTCHA is a program that can tell whether its user is a human or a computer. You’ve probably seen them — colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from “bots,” or automated programs usually written to generate spam. No computer program can read distorted text as well as humans can, so bots cannot navigate sites protected by CAPTCHAs.
About 200 million CAPTCHAs are solved by humans around the world every day. In each case, roughly ten seconds of human time are being spent. Individually, that’s not a lot of time, but in aggregate these little puzzles consume more than 150,000 hours of work each day. What if we could make positive use of this human effort? reCAPTCHA does exactly that by channeling the effort spent solving CAPTCHAs online into “reading” books.
To archive human knowledge and to make information more accessible to the world, multiple projects are currently digitizing physical books that were written before the computer age. The book pages are being photographically scanned, and then transformed into text using “Optical Character Recognition” (OCR). The transformation into text is useful because scanning a book produces images, which are difficult to store on small devices, expensive to download, and cannot be searched. The problem is that OCR is not perfect.
For more information click here.
Hope this will help !!!