You can still listen to BBC iPlayer Radio via your browser by visiting bbc.co.uk/radio
Rajan Datar finds out more about Hardtalk, the BBC's international interview programme.
BBC World Service Online
Rajan Datar hears about the relationship between listeners and authors on World Book Club.
The challenges and opportunities involved in conveying the Transit of Venus on radio.
Implications of Facebook's recent IPO and World Service's plans for the Diamond Jubilee.