Have you ever bookmarked a web page only to forget what it was you were supposed to be looking at on that page? Wired Marker is a Firefox add-on that lets you highlight text on a page in one of 8 colors. Next time you load the page the plugin will remember your annotations and reload them for you. If you don't like the default colors, you can also customize them.

This isn't the first application we've seen that lets you markup web pages like old textbooks. But unlike Awesome Highlighter, Wired Marker is integrated with your web browser, so you don't have to enter the URL of the page you want to mark into a separate web application first. Just right click anywhere on any page, select Wired Marker, and pick your color.

[via Digital Inspiration]

Twiddla is an online whiteboard that lets you start collaboratively marking up practically anything: a blank page, your own images, or a website. It was created to solve the hassle of e-mailing design proofs back and forth for comments. With Twiddla, you can do real-time markup in a matter of minutes, without even signing up.

Twiddla does have accounts - it's in public beta, so you can sign up now - but you can start a new meeting without one, and edit your user details on the fly. Once you're in a meeting, you've got all the basic markup tools you would expect: pen, text box, some basic shapes. You can also upload images or browse to a site and start marking it up. Communication during the meeting is supported by a text chat box and an audio chat button.

It might not be as full-featured as some of the more established whiteboard services out there, but it definitely scores points for quick setup and ease of use. There's even a bookmarklet for your browser, so you can "twiddle" any page with one click. Sure, we could find a couple things to complain about -- an eraser and a tool for drawing neat arrows would be nice, for starters -- but we're in a good mood because we just used a functional web service without having to sign up.

[via ReadWriteWeb]