Tutorials & Courses
Beag air Bheag - A Scottish Gaelic course from the BBC for absolute beginners.
Elementary Course of Gaelic - A good online course.
Gaelic Course - A small online course.
TAIC - A comprehensive online course with audio.
Interesting Reading Practice
Scottish Gaelic New Testament - The Gospel of Mark is available. Several languages can be read in parallel.
Wikipedia - Wikipedia in Scottish Gaelic. If online news isn't interesting enough for you, you can search for whatever you like on Wikipedia.
Things To Listen To
Global Recordings Network - Provides a free Christian audio recording. A great resource.
Other Scottish Gaelic Resources
Scottish Gaelic Dictionary - Online dictionary.