Uber started services in Portland on 5 December without consent from local authorities, city accuses.
Alleged victim claims Uber driver molested her as she slept in back of car, then beat and raped her when she woke up.
Softbank has become the largest investor in mobile app.
Google's Best Apps of 2014 list includes ride-sharing service Uber and WhatsApp rival Telegram.
Uber is close to raising at least $1bn from new and existing investors to finance its international expansion.
Running a business you feel good about is easier than hiding behind uninspiring mission statements.
Private hire car driver Russell Howarth carries out eighth arrest in Sydney, Australia.
Licensed Taxi Drivers Association admits to hiring undercover detectives to gather information about methods used by booking app Uber.
Owning a car in Singapore is expensive and people rely on public transport and taxis to get around.
Uber comes under fire from journalists, regulators and customers for everything from tracking trips to misogyny
Uber executive Emil Michael threatens to dig up personal details of journalist critical of taxi app.
New app dubbed the "Uber for kids" raises $2.6 million to launch ride-sharing service for children.
From Spotify to Snapchat, ranking the billion-dollar mobile internet companies
UberX drivers are being targeted by Arrest Uber founder Russell Howarth
Taxi unions in Spain have claimed a victory in their fight to get Uber out of the country
Kalanick told Institute of Directors annual convention that the California-based company now had 500,000 users in London.
German judge has lifts temporary injunction against alternative taxi service Uber
PayPal unit Braintree will start accepting bitcoin payments in coming months.
There are three things traditional taxi companies have in common with businesses of the past.
Nationwide ban on the car pick-up service issued in Germany following Frankfurt court ruling.
Reserve Bank of India says firms must apply two-step verification process for credit card payments.
Indian radio taxi operators claim mobile car-hiring app Uber violates forex rules.