How to Check an Item on Snopes for Veracityby Laurel Storm
That rumor you just heard is far too ludicrous to be true -- or is it? Before you spread it any further, you'd better check Snopes, a website dedicated to investigating the truth behind the rumors.
Finding the Rumor
The most recently added entries are always displayed on the Snopes main page, so if the rumor you are investigating relates to recent events, you may be able to find it simply by scrolling through the list. If it does not appear there, use the site's search feature. Type some key words from the rumor in the search field, press "Enter" and then look through the list of results. Once you find the rumor you're looking for, click on its entry to display an individual page with details.
How Snopes Works
The individual page for each rumor on the Snopes website prominently features a label and a colored bullet identifying whether that rumor is true, false or a mixture of truth and fiction. In some rare cases, the Snopes staff may not be able to find enough convincing information to either prove or disprove the rumor: such cases are marked as "undetermined." Lastly, the website also includes those rumors that have been kicking about in various forms for so long that they have achieved urban legend status: these are simply marked as "legend."
- link Snopes: FAQ