Im in my mid-forties. Things are going gray in places and my hips hurt for no reason. And back in my day, Black Friday was one day: the Friday after Thanksgiving.You went to Best Buy (the actual store), stood outside in the cold, cold night, and tried not to get stampeded when they opened the doors at 5 a.m. Then you went to Circuit City and CompUSA afterward to see what was left.Only one of those stores is still standing, and Black Friday now takes up multiple weeksif not an entire month. And it can all be done online. You kids have it easy!But enough of me shaking my fist at clouds.While theres no shortage of Black Friday deal aggregation sites, Ive been a cheapskate doing this for long enough that Ive whittled the list down to a brisk rotation of only three of them. Theyre all you need to find the best deals. Trust your elders on this one.BlackFriday.comLike the name might suggest, BlackFriday.com is a one-stop shop for all things Black Friday. It features ads, deals, and news from major retailers like Walmart, Amazon, Best Buy, and plenty of others.You can browse deals by category, track upcoming sales, and get notifications about time-sensitive promos.Go here first to see all the deals being offered by the big retail players. Its a good birds-eye view of the bargains.SlickdealsNext, swing by Slickdeals, which is a community-driven site where users share and vote on the best deals, leveraging crowdfunding to ensure the best deals float up to the top of each category.During Black Friday season, the site is positively bonkers with activity as users post discounts and sales.You can find deals on everything from electronics to home goods, and the sites forums are a great place to get tips and advice from other ravenous yet savvy shoppers.DealNewsThen for the best of both worlds, theres DealNews, which employs a crack team of professional deal hunters to curate the best bargains from around the web.The site helpfully provides detailed information about each deal, including pricing history, product specifications, and retailer reputation.And while DealNews features plenty of editor-picked deals, it also accepts user-submitted offers, and each posted deal has its own comments section where members can chime in to add context to the savings.