Whether you want to use services such as carpooling or dog sitting or provide them, you can cash in on the sharing economy by heading online. By Lisa Gerstner, Contributing Editor From Kiplinger's Personal Finance, July 2014 The sharing economy has exploded. There are nearly 5,000 sharing companies, organizations and programs, according to the Mesh Labs Global Sharing Economy Index. And by some estimates they will generate billions of dollars in revenue this year. Belt-tightening during the economic downturn played a role in the rise of the sharing economy, as more people looked for ways to turn idle resources into cash—say, by renting out a barely used bicycle to neighbors—or to take on a part-time gig. In turn, sharing services found a willing clientele of newly cost-conscious consumers. And technological advances, in the form of the Web and mobile applications, made it easy to connect services with people. See Also: Cash In on the Sharing Economy These sites provide opportunities to spend less on goods and services than you might through a traditional vendor, as well as to earn extra cash. (Some services are available only in certain cities.) Travel and Lodging Name How to Save Money How to Earn Money Airbnb www.airbnb.com Read reviews from other users to choose accommodations, which may range from a spare bedroom to an Airstream trailer. Airbnb adds a 6% to 12% service fee to your bill. Rent out extra space in your home to lodgers. You set the price per night, and Airbnb takes a 3% cut. DogVacay www.dogvacay.com Check reviews to pick a dog sitter. Pet insurance is included, and the sitter will send you daily pictures of your pooch. Board dogs in your home at the price you choose. DogVacay takes a 15% cut of your bookings. Vayable www.vayable.com A local resident at your destination acts as a tour guide, at rates below those charged by tour companies. Vayable charges a 3% service fee. Be a guide in your hometown at the price you set. Vayable takes a 15% cut. Car- and Ride-Sharing Name How to Save Money How to Earn Money Lyft www.lyft.com Depending on the city, you'll either pay a set amount (based on time and distance) or make a donation of your choice to the driver. If you’re at least 23 years old and own a four-door car in good condition, you can drive people in your area to their destinations. Lyft takes 20% of your earnings. RelayRides www.relayrides.com Provide your driver’s license information so RelayRides can check your driving record. If you pass muster, choose among cars to rent in your desired location. Rent out your car with the availability and price you set. RelayRides takes 25% of the rental fee. UberX www.uber.com Use the Uber smart-phone app to request a ride. You can see the type of car and the driver’s rating from other riders—and cancel if you would rather not have that driver. If you’re at least 23 years old and own a midsize or full-size car with four doors, you can act as a taxi service. Uber typically takes 20% of your earnings. Household Items Name How to Save Money How to Earn Money NeighborGoods www.neighborgoods.net Rather than buying an item you won’t need often—say, a tent or a chain saw—see whether a neighbor will let you borrow it free or for a fee (available to anyone in the U.S.). You can charge a fee (or not) to lend items you own, such as a ladder or a sewing machine, to people in your area. Spinlister www.spinlister.com You can rent bicycles, skis and snowboards. Contact the lender if you have any questions before you rent. Rent out equipment at a price you choose. Spinlister takes a 17.5% service fee for each rental. Yerdle www.yerdle.com Yerdle doesn’t use cash; you use credits you’ve earned to purchase items you want. You pay for shipping ($2 to $4). Sell items you no longer want—say, books or toys—for a number of credits that you set. You’ll get 250 credits when you sign up. Clothing Exchanges Name How to Save Money How to Earn Money Poshmark www.poshmark.com Browse for secondhand women's clothing, handbags, accessories and jewelry. You pay the $4.99 shipping fee for purchases. Use Poshmark's mobile app to upload photos of women’s clothing to sell. Poshmark takes a $2.95 cut for sales under $15 and 20% of the price for other sales. ThredUp www.thredup.com Search for slightly used clothing at discounts from retail prices. Shop online "boutiques" for categories such as maternity clothing and swimwear. Mail high-quality clothing to ThredUp in a postage-paid bag. You can get up to 80% back in cash or store credit. Odd Jobs Name How to Save Money How to Earn Money TaskRabbit www.taskrabbit.com Post a description of a task you want done, such as picking up groceries, making household repairs or proofreading papers. You can set a price or request bids from workers. After you pass a background check, look for tasks that suit you and make offers.