We just need someone to make a tutorial. If you're willing and can speak well enough English, please try to make something. It will only make it harder to make the video if we stress all these specific criteria I realize. so if we just create a sample video, I'm sure it will be suitable.
Here I'll help organize it.
Videos needed
Introduction to the Editor: All the buttons, shortcuts, and windows should be explained briefly. Please include Preview time, and Kiai time. Also it would be nice if this was an intro to mapping as well, where you cover how to view ranking criteria, how to submit a map etc.
Timing: BPM and offset explanation, Common methods, how to determine timing signature, dealing with multiple BPMs/ offset changes, things to avoid/how to tell if your map is on time/ what you should do when you've already mapped a song and you need to change the timing. (Throw kiai and preview points into this since its there)
Mapping to the beat: Make sure the beginners know the basics- Hitcircles, sliders, spinners and how they are properly used. It is probably a good idea to go into basic types of mapping(stacks, jumps and streams, types of sliders, using symmetry, linear mapping, abstract mapping, overlap, blankets, crossovers, gaps and transitions, combo usage) It would also be a good idea to compare and contrast a beginner type song from a harder to map song. Briefly explain things like slider velocity changes (dos and donts), and explain the basic differences between the basic difficulty levels. Explain what makes an easy an Easy, a normal a Normal, etc....
Hitsounding: Effective ways to implement hitsounds in your map. It should include the dos and donts of hitsounding. Try to cover the most common approaches to hitsounding (explaining basic music theory would be helpful). Remember to go into custom hitsounding as well and how it should be used.
Using the Design editor and the osb: Requirements are quite obvious. go through all the things one can do in this window, how to do loops, and other things that the common beatmapper may want to include. even more importantly try to explain what you should not do in maps.
Tutorial: Adjusting bitrate
Tutorial: Common ways to reduce filesize:
I think that's all we need for beginner mapping. Any additional videos would be for advanced mappers. Lets get the beginner videos finished first. Any takers?