Details about the various public transportation services, including bus, tram and underground, available in London are found here.
Regular Websites
Provides information on London’s bus transit system. London’s bus routes are provided along with details on the history of the bus line and London’s hydrogen buses can be accessed here. - London Buses
http://www.tfl.gov.uk/modalpages/2605.aspx
Provides information on the London Underground, the capital’s system of subways. Details on Underground fares and tickets is available, along with planned works and disruptions. - London Underground
http://www.tfl.gov.uk/modalpages/2625.aspx
Provides information on all of the transportation services offered in London. There are also updates provided on all of London’s transit systems and the fare charges for London. - Transport for London
http://www.tfl.gov.uk/