I like tag cloud art
www.wordle.net is a perfect example of how I can literally spent a couple of hours with physically doing nothing, but my brain is making all sorts of cartwheels 
It is fun, it is artsy, and makes you think about good things.
In essence, the Java app generates a piece of ‘art’, based on the words from the rss / atom feed of any given web page or blog. You can also add words or a piece of text yourself if you want to. Then, it generates something pretty! You can alter all sorts of things, like color scheme, fonts, placement of words in percentage’s (more vertical/horizontal etc) So, by the time I was done making the example below, half my workday was done!
Please click to enlarge, and marvel at its nerdish simplicity, yet perfect awesomeness. It’s words generated from this blog, placement of words and picking of the colors all done by the zero’s and one’s that in the end make up for the code that generates the picture. I like it!
You and the bum
Imagine, a bum. He has a face, but it isn’t one that stands out in the crowd. You wouldn’t remember it, even if you saw it again. He has colour, but doesn’t shine. If anything, he looks like he’s been living inside a vacuum cleaner until, just like society, the vacuum cleaner regurgitated him. Perhaps you’ll meet him on the street, raffling through yesterdays newspaper, with a look of mild bewilderment over his face. Or in a subway station. And if you see him there, you realize that, besides the difference in appearance’s, there is one thing that really separates the two of you.
Purpose, brought you to the subway station. Place’s to go, people to meet, living out the choice’s you’ve made in the past. You seem in control. That is, what separates you from the bum. Look at him, his shoulders hunched, the look in his eyes fades in comparison to your so well rehearsed 1000-mile stare. He has no places to go to, because nobody would like to meet him. He goes wherever his mood takes him.
There is a fact, that will save you both. Choice, equals change. Change equals movement, and movement can’t be controlled. Still there? Don’t worry, you were imagining this.