Youtube

Dartswinger70 said

One thing I have picked up on is, if you keep the videos as short snippets,people will watch the whole thing, if it is beyond 10-15 minutes their attention span drops off. So, if you have a long story to tell or say an engine rebuild, post it an a series of short video snippets.

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I agree, 5 minutes or less will keep the audience.
I have started to watch videos that start off with the history of metric threads and all i wanted to know was how to get an alternator out of a caravan. Not really, but some tubers can ramble endlessly..
I do watch a lot of car build videos, halfasskustoms being my favorite. They are 30 minutes plus.
Metalworking tutorials at make it custom, has some great content.