'Niche' Sites Offer Net Results for Gift Hunters As you sit down at your computer this holiday season, think twice before you click on a shopping Web site. If you're on the perennial hunt for a distinctive gift for that special someone — something handmade? something that just says "wow!" — you might want to try a "niche" site instead of one of the big boys. That's where Maggie Mason comes in. Her shopping blog, mightygoods.com, points you to that self-watering flower pot your mother didn't know she needed. Or a Wonder Woman costume for Fido. Or a personal potato chip fryer. Or a map of the history of all civilization. You get the picture.