I have been approached today by a company called Crewise who are based in Manchester. They purport to represent British Airways flight crews and catch you with a message asking if your apartment is available to rent for stopovers. The alarm bells ring here because of the location! When you ring back, it appears they are a leisure company associated with BA crews and as such offer incentives and discounts to them and also holidays. For only £100 you can advertise your property on their website for 2 years.
Not sure about them as one of their pages shows up as a flagged known spyware page in Google, although the rest of the site seems cosher enough. They may be legitimate enough, but I am always sceptical about people contacting me and asking for money.
Lets be careful out there!
Mark