"Fizber" is a person selling a house "by owner", without a Realtor. There are a lot of fizbers in the U.S. these days since homeowners are reluctant to pay the agent a commission of on average 6%. Selling By Owner is easy, especially if you work with a good FSBO service.
There's also an internet company - Fizber.com - which provides on-line advertising for "for sale by owner" real estate nationwide. Forget about creating a separate listing for every classified site you use. With Fizber, you make an ad once, and you're done. Your property will be seen or linked to: Google real estate, Yahoo! real estate, Craiglist, HomesByOwner.com, ByOwner.com, FSBO.net, Oodle.com, FSBOpublishers.org, FSBOnetwork.com, FSBOonline.com, ForSaleByOwner.com, YellowPages.com, PropSmart.com and many others!