What's your most important job when selling a house privately?

Finding buyers!
It's so simple that many private sellers answer this incorrectly.
"Presenting my property well" or "Setting the right price" are the two most common wrong answers I hear.
Granted, these things are important but they are utterly meaningless unless you can find the buyers!
Where Are All the Buyers?
Well, chances are you're in the throws of house hunting at the moment so you probably know the answer to this already.
For the avoidance of doubt:
"The buyers are on the Internet!"

More specifically they are surfing the top 5 property portals:

Findaproperty.com:

Is now owned by Associated Newspapers, the publishers of The Daily Mail, The Mail on Sunday, The Evening Standard and Metro.
Propertyfinder.com:
Is now half-owned by News International, the media conglomerate controlled by Rupert Murdoch.
Primelocation.com:
Was bought last year by The Daily Mail & General Holdings.
Fish4homes.co.uk:
Has been developed by four regional newspaper groups - Newsquest Media Group, Northcliffe Newspapers Group Limited, Trinity Mirror plc, Guardian Media Group Regional Newspapers.
Rightmove.co.uk:
Is the only one that doesn't have any involvement with newspapers (instead it was founded by three of the UK's largest estate agency chains - Halifax, Countrywide & Connells.

In March 2006, Rightmove plc was publicly listed on the London Stock Exchange with the three original investors each retaining a significant shareholding).
Unfortunately for the newspaper industry, Rightmove.co.uk is streets ahead of the rest and continues to dominate the house hunting market (they showcase 80% of all UK property that's for sale).