The number of self-made millionaires selling goods on eBay has increased by 300 in the past year, a study shows.
The list of top businesses include home furniture and DIY, car parts, clothes and computers.
There are now more than 1,000 so-called eBay millionaires in the UK.
Rob Hattrell of eBay said: "Around 23 million Brits continue to visit us every week and it's no surprise that the nimble small businesses, which understand and cater to the ever-changing tastes of British shoppers, are flourishing."
An eBay millionaire is defined as a British registered business on eBay.co.uk with an annual turnover of £1 million or more.