The Phantom Writers, though not as big as ezine articles and go articles, has articles that are of very high quality. Though there are only about 3000 articles available for free reprint, each of these have been written by people who know what they are talking about. Each article distributed on the TPW network has been paid for by the author - this in itself ensures an effective quality control. Articles are categorised author-wise making it a little difficult to find out what you are looking for. But again, you can always use the Google site search feature available to find articles in your niche.