drag and drop
Open New Tabs by Dragging Links and Text to Chrome's Tab Bar
Many of us probably right-click on links to open them in new tabs or search for text on Google. Reader hackbreaker shows us another quick way: just drag links or text to the tab bar. More »
YouTube now does HTML5 drag-and-drop video uploads
As is the case with Docs and Gmail, you'll need to be using a compatible browser to be able to use drag-and-drop uploading. Currently, only Google Chrome and Firefox are supported.
drag2up for Chrome brings drag-and-drop uploading to the whole Web
One of my favorite Gmail features is the ability to drag-and-drop attachments onto email messages. That's so cool! There's no more browsing for files - the whole thing feels much more like a desktop app.
drag2up is a Chrome add-on that aspires to bring that same functionality to the whole Web. It's super-cool - when it works. I've selected the screenshot above for that exact reason. The imgur.com link is the result of a successful upload attempt. I dragged an image onto a text area, and drag2up uploaded it to imgur.com in the background, and then it populated the text area with the URL of the image. It even wrapped it in forum-friendly [img] tags for me.
The second line (the one starting with Error) is what happened when I tried uploading a ZIP file. No joy, but I guess that might be resolved in time.
When I tried using drag2up with another edit control (CKEditor running in a heavily-customized environment), it couldn't even modify the text shown in the control. But it did work with a simple text area control.
Bottom line: It's really, really cool, when it works. Let's hope it'll gradually start working with more and more files and editors.