This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
This video shows Helen Atthowe talking about penny cress. If you leave it alone (read: don't pull it out or smother it like you might do with other weeds) it will reseed, grow in the early spring and then go dormant - providing your garden plants with a helpful mulch that does not compete.