Teleport to SLURLs
View local map and nearby residents
Search for SL residents
Access local chat
Read and send IMs
View groups
Access group chat
Browse and manipulate inventory
Send inventory items to residents
Send money
Offer and accept teleport requests with notifications
Offer and accept friendship requests with notifications
Teleport home
Keep avatar online while browser is closed
View IMs history while avatar offline
Keep and view L$ transactions history
SpeedLight is just launched so we also have a whole bunch of features planned:
Mass IM delivery
Group notices: regular and scheduled
Inventory uploads
3D world view in browser (80% completed, planned to get released soon)
Compare the Free and Gold facility features. Check this page for more planned features.