in particular is a ... For users in the US, Craiglist has a number of auto-search tools -- one in particular is a mobile alerts site, www.4info.com/browse/craigslist/. Sign up for an account and create a craigslist alert, listing the make/model of the bike you had stolen to be searched. When new items are posted in the For Sale &gt; Bikes category, any matches to your bike will be sent to your phone. At this point you should contact the police and ask for their help in getting your bike back. If you can prove ownership they will be more receptive to helping you. Don't accuse the seller of stealing your bike. He'll just get rid of it. Go to My Stolen Bike and find your stolen bike details using the search, then click on the Twitter and Facebook icons. Your friends will automatically be alerted with all details of the bike and where it was stolen. Make sure you upload a picture. Call on local bike shops with a picture and details of your bike. They are happy to help ... Call on local bike shops with a picture and details of your bike. They are happy to help. If you're bike is unique, like a time-trial, single speed, tri-bike, cross bike or racing bike, list it with specific bike clubs websites and forums. A specialist tri-bike was found this way, after only 20 minutes of posting on a tri-athlete forum! Bicycle ID Kit Protect your bike with the Bicycle