When you interact on the internet, you think that you're not really using any resources.  In fact, using a blog, facebook or other social networking site might seem like a great way to save trees, since you aren't writing letters to family and friends to catch them up.  Well, while you may be saving on paper, you are still leaving a carbon footprint, as are your readers.  Each entry is stored on a server which is a part of a network.  In fact, according to Green Certified Site/CO2Stats, "In 2007, for the first time in history, the carbon emissions due to information and communication technologies exceeded that of the entire aviation industry."

I stumbled across a German website that promises to plant a tree for each blog that spreads the news and posts about this, thus neutralizing your blog's carbon footprint for the life of the tree (about 50 years).  Honestly, I can't be sure that they actually will plant a tree, but really, what can it hurt?  If nothing else, it raises awareness.  To read more about the program, click here.