It doesn't get much simpler than this. Every day a new fact is posted up for you to use on your IWB. You might use it for a starting point in literacy. As a research point to follow up on Depending upon the fact the options are aplenty.
Essentially this offers a visual discussion starter based on some quirky facts from our quirky planet. The site is here. Example included below.
Personally I think it would make a great widget to be added to a class blog, but that is just one mans opinion.