Is It Down Right Now? - Network & Admin
NeoDownloader - As you know, there is a lot of websites with a lot of pictures, music and movies.
IsThisSiteDown.org - Free tool to check whether a site is down just for you, or for everyone.
WFDownloader App - A free bulk image downloader application that also serves as a multi-purpose bulk downloader for your PC.
Is it Down? - Is it down can check if a website is down or is it just your PC that can not access it.
Transloader - Start downloads on your Macs, remotely from other devices