<Tr> <Th> Instant messenger client </Th> <Th> Company </Th> <Th> Usage </Th> </Tr> <Tr> <Td> AIM </Td> <Td> AOL, Inc </Td> <Td> Closed in December 2017 </Td> </Tr> <Tr> <Td> BlackBerry Messenger </Td> <Td> BlackBerry </Td> <Td> 91 million total users (October 2014) </Td> </Tr> <Tr> <Td> Discord </Td> <Td> Discord inc . </Td> <Td> 25 million users (December 2016) </Td> </Tr>

Many web-based e-mail providers offer services such as yahoo messenger and google talk