Here's a quick lesson in how a trade rumor can get started...
Let's take a hockey fan who happens to be part of a website with a small to medium sized readership - we'll call him "Schmorklift". He might write something that is nothing more than some guy nosing around capgeek looking for contracts that match contracts on a team (let's say the Blackhawks).
At one point, he might throw something out there that really isn't plausible, except the contracts going in each direction are the same basic amount.
A writer with a larger site, who happens to be part of the first site's small to medium sized readership, winds up sourcing this implausible trade. Now it gets to where a lot more eyeballs can find it.
A day later, it is on a major site, like espn.com.
Remember this in the next few days and weeks, when there's angst about a possible Sharp-for-Kozlov deal.