(from: http://wiki.secondlife.com/wiki/Video_Tutorials)
Below are some YouTube videos for learning basic skills in Second Life. More links are provided on the above web page.)
BASIC KNOWLEDGE
How to use gestures
How to manage your inventory
(http://youtube.com/watch?v=AULw9Oa_1Bw)
How to use HUDs
(http://youtube.com/watch?v=D3rsGO2Wqho)
How to change your appearance
(http://youtube.com/watch?v=GqbuMi5N97c)
How to open and sell boxes
(http://youtube.com/watch?v=hQoaQzuqqkY)
How to use the building grid
(http://youtube.com/watch?v=8k-XoIPycm8)
How to fill in your profile
(http://youtube.com/watch?v=ZCgQRrdtgQc)
How to create and send a notecard
(http://youtube.com/watch?v=PwSIYGhZbT4)
How to use Undo
(http://youtube.com/watch?v=ZKIVPTVh5IY)
How to make a flag that waves in wind
(http://youtube.com/watch?v=cuBlYNcZdrg)
How to to make tiny prims
(http://youtube.com/watch?v=m6XqQM9hgB0)
Assorted Tips & Tricks
(http://youtube.com/watch?v=LU-NhMedmnk)
Advanced Snapshot Magic - Take better pictures!
(http://youtube.com/watch?v=AZyBNBW2yjI)
Noob Be Gone Series
(http://naturalselectionstudios.com/?cat=59)
Building in Second Life Series
(http://www.slbuilding.com/)
Building and Scripting Series
(http://cterport.ed.uiuc.edu/technologies_folder/SL/)
BenjaKepler's Videos
(http://youtube.com/profile_videos?user=BenjaKepler)