App to External SD on Samsung I9003 How can i install apps on Samsung Galaxy SL's external SD card?
2 GB Internal memory
2 GB Internal SD card
16 GB External SD card

Samsung Galaxy SL=I9003
You can use App2SD for this. Keep in mind that not all apps can be moved to the SD card this way, also part of them will always remain in the internal storage. This does not require rooting.

You don't actually need the app but you can also do this via the application section of the settings menu. App2SD offers a nicer interface and hides those applications you cannot move to the card, though.

One alternative is Link2SD. This application is able to move all apps completely to the card. The downside is that it is more difficult to set up as it requires root and a separate partition on the SD card.