You can find how-to videos for almost any software and procedure at YouTube! QGIS and ArcGIS users and trainers have posted many useful resources there, so search for exactly what you need and broaden your search terms if you don't find what you are looking for. In addition, many trainers have posted their materials as PDFs and as web pages, so it is worth simply googling. User forums may have your exact question posted with the perfect answer. It is important to consider the following information when evaluating a resource:

• How many others seem to have used it (youtube hits)?
• Does it have a date that indicates when it was create or posted? has it been updated? Older postings may have inaccurate information for more recent versions of software. 
• Is it in a format that works for you - do you prefer videos, PDFs, or web sites? If none of these work for you, you can also check out user forums like Stack Exchange to see whether others have posted questions similar to yours and whether they received helpful answers. 

The following resources and documents may be helpful:

• VCGI Youtube Channel
  • VT Open Geodata Portal
  • QGIS
  • Raster Data
  • UAS (Drones)
• VCGI Training Materials
  • Intro to GPS Powerpoint, Using GPS step-by-step, and Using DNRGPS - Chapter 4.
  • Using VCGI's Interactive Map Viewer - Chapter 3
• VCGI Event Archive for listing of past webinars with links to Youtube videos as well as links to powerpoints from past conferences.
• Stack Exchange for GIS - Stack Exchange is a network of 166 communities that are created and run by experts and enthusiasts like you who are passionate about a specific topic. We build libraries of high-quality questions and answers, focused on each community's area of expertise.
• QGIS training manuals online (try searching on Youtube as well!)
• ArcGIS Learning Opportunities