If you use Firefox then check out the very nice greasemonkey script fluffbuster purity; http://www.fbpurity.com/. It gives you selective control of all the bull that fills up Facebook. (There's some interesting reading there too regarding what facebook thinks of that script...)
I've mostly used LTspice and it works very well and has a low learning threshold. Of course you can insert spice directives in the schematic to do more advanced functions like basic parameter sweeps as well as monte-carlo simulations and so on and so forth. Check out LTspice's yahoo group for a bunch of documentation.
As far as other recommendations for eagle go I doubt that's what you're looking for as eagle is solely for schematic capture and pcb design, there are no simulation capabilities in it.
I don't buy these numbers. Assuming the summary is correct and one search uses as much energy as boiling half a cup of water, then the total energy dissipated is;
Which for water gives (assuming 80 degrees of temperature difference and 75g of water, or about half a small cup of tea);
A few google searches I just did took on average 0.2 seconds each, as reported by google.
This would give a power draw of 125kW, for just running the services that handled my single request!
Now, I must say that I don't now a lot pertaining to how much power google's servers draw, and of course running the search engine servers ism't enough, google needs to update it's database and do lots of other maintanence. All in all this strikes me as far too much.
Does anyone happen to have any real knowledge about this?