Why not take a break from the fire hose of Twitter and RSS and check out our weekly roundup of essential writing from around the web about technology, culture, media, and the future? Sure, its one more thing you can feel guilty about sitting in your Instapaper queue, but its better than pulling in vain on your Twitter list again. If you follow someone on Twitter and you find that her tweets are too much for you, then you may unfollow her. Joshua Hunt considers Sonys portable SRF-39FP radio, which is a classic in American prisons.