We sold two plots of land in Melbourne via ZeroAgents.com.au (a google search couldn't trace them, not sure they're still operating) at different times and whilst we were based in the UK.  You really don't need an agent to sell your property, just access to the main internet property sites – where most buyers start their search these days – and the motivation to save commission/advertising costs.  

At the time we sold our land (3-4 years ago) we found we couldn't get access to the top internet property sites like realestate.com or domain without using a web-based agent.  We were comfortable with the idea of using ZeroAgents, who provided an intermediary service without creating a barrier between the buyer and seller.  I conducted the sales negotiations with our buyers over the telephone and via email, which felt empowering and rewarding.  I know for a fact that we could have sold one of our plots several times over and that we broke the sales record for that area.  I think there are quite a few of these internet real estate businesses up and running now and I reckon that the days of the traditional high street estate agent are numbered.  

Last year, when we finally moved back to Melbourne from the UK we sold our family home via Housenetwork.co.uk. We weren't hopeful of a quick sale given the state of the property market in the UK at the time.  For a fixed fee, Housenetwork supplied us with a (then-compulsory) Home Information Pack (the equivalent of the Section 32), a sale board, photography service and access to the top property internet sites.

Again, we liked the buffer provided by the internet agent and, at the same time, felt in control of the selling process:  prospective buyers had to be pre-approved not just pre-qualified and be in a position to buy; we showed prospective buyers around our home; we supplied the copy for the advert and supplementary photos for our site page, and retained editing control (useful if your house sale spans the seasons and for ensuring your advert stays "fresh"). 

It took us 4 months to find a buyer, but the house sold for the full asking price to only the second couple to view it.   We didn't have to deal with any time-wasters and the people we sold to were first-time buyers.

We did try shopping around for a high-street agent, armed with a list of questions designed to check out exactly what service the agent offered for his/her commission.  Most fell at the first post when asked who would show prospective buyers the property if the designated agent wasn't available.   The best answer? All members of staff would be expected to be familiar with the layout and features of all the properties on their books.  The worst?  Well……a fill-in agent would try to make sure s/he arrived at the property 10 minutes before the buyer to make sure s/he had time to take a quick look around the house.