This Mac OS Chrome clone's USP is that it lets you sign into multiple accounts from the same website - Gmail for example - in multiple tabs.
Best for...Social networking
Flock's clever sidebar lets you drag and drop pictures, articles and links into feeds for Facebook, Twitter, Flickr and the rest.
Best for...Mac users
Camino's open-source browser gives a similarly fluid OS X experience to Safari, but has more user-made add-ons than Apple's official browser.
A swift, Linux-based browser, Netsurf boasts a pop-up and ad blocker but not much else. This is all about stripped-down, lightning-fast simplicity.
Another open-source project, this ambitious browser is a one-stop-shop web portal, HTML editor and straightforward email client all in one.
The abiding joy of this very competent browser is that it lets you change or move every menu, tool bar and icon to your heart's content.