Lots of good stuff just released in AIM for Windows and Mac.
Updates
Lifestream is back! We’ve brought over your Facebook and Twitter accounts, Instagram is newly available and YouTube will be coming soon.
To add these services, just click the icons on the left side bar of your contact list. Click the updates icon (under the chat bubble) to see your feed. Cross post your status to Facebook and Twitter too. You can edit, add, and remove your services from preferences anytime.
Look for Lifestream to make its way back into AIM for iPhone and Android later this Fall.

Sounds
Missing the classic IM sent sound? No problem, open your AIM preferences (now available from the dot dot dot button on the side bar), choose the sound tab, open the options by selecting edit. Then choose “Play the classic AIM sound”. If you prefer to set your own custom sound, select the “Choose file” button and browse to a sound on your machine.

Chat logs
Want to store a copy of your chats on your computer? No problem. AIM for Window now offers this feature. For your privacy, you’ll need to opt into it. Open preferences, and select the box next to Choose how your messages are saved, “Store and save a copy of my chats on my computer”.

