With some exceptions, though, freeganism is a largely urban or suburban phenomenon. Some research suggests that freegans overcome this apparent contradiction by attempting to re-naturalize the city, treating urban waste as a "natural" resource and approach dumpster diving as a practice analogous to hunting or gathering. Freegans are best known for recovering discarded food from commercial establishments, a practice known as "dumpster diving" or "urban foraging" in North America, "skipping", "bin raiding", or "skipitarianism" in the UK, "skip dipping" in Australia, "containern" in Germany, or "doing the duck" in New Zealand. Freegan diets are thus made possible by the range of practices that produce commercial food waste that is nonetheless still edible, such as conservative sell-by dates, the deliberate overstocking of certain perishable products (like baked goods), or aesthetic criteria for fruits and vegetables. However, dumpster diving is not limited to rummaging for food; freegans report recovering clothing, books, appliances, bicycles, and furniture from commercial dumpsters as well. Although some freegans are reluctant to share their sites and strategies for "urban foraging", others—like those in freegan.info—have organized public events to raise awareness of food waste and recruit other practitioners. These events attracted significant media coverage, particularly between 2005 and 2009, from outlets such as The New York Times, Oprah, and MSNBC. Instead of buying conventionally grown foods, wild foragers find and harvest food and medicinal plants growing in their own communities. Some freegans participate in "guerrilla" or "community" gardens, with the stated aim of rebuilding community and reclaiming the capacity to grow one's own food. In order to fertilize those guerrilla gardens, food obtained from dumpster diving is sometimes also reused, and some use vermiculture instead of ordinary composting techniques in order to keep the required infrastructure small and adapted to urban areas. Some rural freegans are also "homesteaders" who grow their own food and employ alternative energy sources to provide energy for their homesteads, occasionally living "off the grid" entirely. "Sharing" is also presented as a common freegan practice, associated with the anarchist idea of a "gift economy". For example, Food Not Bombs recovers food that would otherwise go to waste to serve warm meals on the street to anyone who wants them. Really, Really Free Markets are free social events in which freegans can share goods instead of discarding them, share skills, give presents and eat food.