LetterPop is a service that allows you to easily create online newsletters with text and images and several pages. It offers a free plan with which you can publish up to 10 newsletters. When you’ve created a new one, you can update up to 25 contacts with up to 10 eMails per year. Newsletters will be available through your online profile and RSS. The site is sponsored with ads on the newsletter page.
Celestia is a free and open source space simulator that allows you to explore space right from your computer. Celestia is available for download on Windows, Mac OS X, and even Linux. Celestia has many very cool features, including an eclipse finder.
Not only does the eclipse finder allow you to find solar and lunar eclipses on Earth, but you can seek eclipses on other planets as well. I found out something really cool when checking out eclipses on Jupiter - because Jupiter is very large and has many moons, solar eclipses are very common.
Compared to other technologies on the web, email hasn’t evolved much. Unfortunately for us, email providers are generally satisfied with the status quo but Zenbe wants to change that. Zenbe is an email startup begun by folks who were dissatisfied with the lack of innovation. The Zenbe team is dedicated to taking email into the future with new features and fresh ideas.
So what makes Zenbe different? There are a lot of things, but here are the highlights.
There are a ton of social networks and microblogs out there. As is the case with most of them, they’re not really worth your time unless you find some way that they can directly benefit YOU.
Personally, I was not a huge fan of BrightKite until just recently, when they released their dedicated iPhone Application. The location-based social network always seemed a bit lame to me because you either had to have your laptop with you (and booted up) everywhere you went, or you had to control the entire system through text messaging. Now, for iPhone users anyway, this App could take BrightKite over the top.
The chalk gives way to the mouse. The canvas to the screen. But essentially online whiteboards try to do the same thing that real world whiteboards used to do in our good ol’ school days. Online whiteboards though have gone a few steps beyond the mimicry.
Dabbleboard, a whiteboard application brings its own host of features to heighten the whiteboard feel. Call it a ‘thinking’ whiteboard.
For the uninitiated, let me just define virtual whiteboards. Whiteboards are software applications that allow for collaborative communication through writing or drawing, in fact all the attributes of a real world whiteboard (and more).
Most of the Linux users should be familiar with Gnome and KDE since both of them are the most commonly used desktop managers in the various Linux distros. Now, if you are using an old PC with low hardware specs, you might find that the above two desktop environments are too heavy for your computer to handle.
In this case, you will have to consider using an alternative lightweight desktop manager for your Linux. Here are 8 of the best lightweight desktop managers that I personally use and recommend.

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(1) AwayFind - Make sure you receive urgent emails when you are offline or on vacation. AwayFind gives you a custom form that people can use to reach you via SMS when you’re not accessible via regular emails. Read more: AwayFind - Receive Urgent Emails While Offline Or On Vacation.
Whether you’re bored at work, like to stimulate the nostalgia, or just love to craft, paper modelling is a real fun way for you or your kids to waste time.
Though it might seem like a somewhat childish hobby, there are really many kinds of papercraft, varying in theme and difficulty.
A lot of different papercraft guides and how-to’s are available on the net. Most of these services offer pre-printed lay-outs. This means you’ll just have to cut and paste to create a unique and original looking model or toy.