The list author says: "So you just bought a D5000, huh? Now you're ready to amass all the accessories that will help you get the most out of your new investment, but you would prefer not to break the bank. (I exclude lenses from this list, as they aren't exactly accessories so much as major hardware)"
"The verdict is still out on these little filters. They are designed to block ultraviolet light and remove haze from photos. Some claim that they are unnecessary, others use them all the time. At this low price, you might as well find out for yourself."
"Graduated neutral density (grad ND) filters are plates that are half clear and half darkened, with a gradient in between. Positioning these filters at the horizon will hold back the brightness of the sky for a more balanced exposure. Don't buy the circular grad NDs... they force you to position the horizon in the middle of the frame!"
"Even a quick press of the shutter button can introduce camera shake into your photographs. Using a remote control, like the Nikon ML-L3, to trigger the shutter release will help you get extra crisp shots."
"We've all seen photographs of rivers or waterfalls in which the water has a blurred, dreamy feel. This is achieved by leaving the shutter open longer than usual. A neutral density filter is a uniformly dark filter that holds back some light, allowing the camera shutter to remain open longer than usual without letting in too much light and overexposing the shot."
"This Class 4, 8GB SD Card is a good middle-of-the-road memory card. It offers decent storage space for shooting in RAW format and decent speed for making a few continuous shots at a time. There are larger and faster cards, but they are more pricey... start with this and see if you really NEED to upgrade."