AIM
Away messages and slammed doors
AIM (AOL Instant Messenger) was America's dominant instant messenger from the late 1990s through the mid-2000s, launched in May 1997. Away messages, buddy lists and its door-slam sounds defined online adolescence for a generation. Verizon's Oath shut it down on 15 December 2017 after twenty years.
Timeline
- 1997
-
May 1997
Launch
AOL Instant Messenger launches
Free standalone messenger with buddy lists.
- 1999
-
August 1999
Incident
Blocks Microsoft's interop attempts
AOL repeatedly patches AIM to lock out MSN Messenger clients in the messenger war.
- 2002
-
2002
Peak
Dominates North American instant messaging
Majority market share through the early 2000s.
- 2008
-
March 2008
Feature
Open AIM opens the protocol
Third-party clients get official access, years after users already moved to multi-protocol apps.
- 2011
-
2011
Decline
Users drain to Google Talk and Facebook Chat
AIM's network effect finally breaks.
- 2012
-
March 2012
Decline
AOL winds down the AIM team
Most of the remaining AIM staff is laid off; the product enters maintenance mode.
- 2015
-
23 June 2015
Acquisition
Verizon completes $4.4B AOL acquisition
AIM becomes a legacy asset inside Oath.
- 2017
-
6 October 2017
Shutdown announced
Oath announces AIM's discontinuation
-
15 December 2017
Shutdown
AIM shuts down after 20 years
All data deleted after the cutoff.
How it looked

Ownership
Why it shut down
Official line: Oath (AOL's parent) announced AIM would be discontinued on December 15, 2017: "AIM tapped into new digital technologies and ignited a cultural shift, but the way in which we communicate with each other has profoundly changed."
Our analysis: AIM owned American instant messaging for a decade and monetised none of it. AOL starved the product to protect dial-up revenue, Google Talk and Facebook Chat absorbed its users in the late 2000s, and the smartphone finished it. By 2017 the shutdown was a formality.
History
The buddy list
AIM shipped in May 1997, spun out of AOL's in-house buddy-list feature by engineers Barry Appelman, Eric Bosco and Jerry Harris. Crucially, it was free and didn't require an AOL subscription, and it conquered American homes, dorms and offices. The away message was the status update before status updates; the door-open and door-slam sounds are still burned into a generation's memory. Through the early 2000s AIM held a majority of the North American IM market, fighting off
MSN Messenger and Yahoo while AOL famously blocked interoperability attempts.
Starved at home
AIM never became a business. AOL's revenue was dial-up subscriptions, and management repeatedly declined to invest in or monetise a free product that might cannibalise them. The team that later built Google Talk included ex-AIM engineers; Gmail integration and then Facebook Chat pulled the mainstream away, and mobile-first messengers finished the job. By the time Oath announced the shutdown in October 2017, usage was a rounding error. It died on 15 December 2017, two decades old, six months after
Yahoo Messenger's own death sentence was announced by the same parent company.
Similar projects
Sources
- AOL Instant Messenger is shutting down on December 15th Engadget 6 October 2017 [archived]
- RIP AIM: AOL Instant Messenger Is Shutting Down December 15 Variety 6 October 2017 [archived]
Last verified: 11 August 2026