I operate a website called http://findthatbike.co.uk, it's designed to assist stolen bike victims who need to keep a look out for their bike on online classified sites.
What it does is collects all the bike adverts from eBay, Gumtree and PreLoved and puts them into a big searchable database. This means that bike theft victims can look once but check all the sites, it also means they can setup an email alert and get notifications if their bike appears on any of the sites.
Would you be willing to sticky the below quote, to help spread the word about the service. If you don't wish to then can I ask you keep it mind encase any members bikes are stolen it can make the difference between recovery and never seeing it again.
Thanks, JohnIf your bikes just been stolen it is well worth keeping an eye on eBay, Gumtree and PreLoved. Many stolen bikes eventually end up being sold this way sometimes months after the crime.
This is where http://findthatbike.co.uk comes in. It lets you setup an email alert to all 3 at once, in addition you can keep an eye on local sales in a handy gallery.
It covers the whole of the UK and there's no charge for it.