Apart from youtube, you can try those two articles, though they describe the function of plasmid elements mostly from the point of protein expression and how to design a good expression construct.
Article Recombinant protein expression in Escherichia coli: Advances...
Article Advanced genetic strategies for recombinant protein expressi...
Moreover, there is a decent textbook entitled "Gene Cloning and DNA Analysis: An Introduction", which should also help you. (if I remember correctly, a pdf of an older version can be found somewhere on the web).
https://www.wiley.com/en-us/Gene+Cloning+and+DNA+Analysis%3A+An+Introduction%2C+7th+Edition-p-9781119072560
There's a site called EcoliWiki that's useful. However, it does take some know-how to find most of the useful information:
http://ecoliwiki.net/colipedia/index.php/Welcome_to_EcoliWiki
The 'Plasmid' Section contains information about numerous elements common ion research and commercial plasmids:
http://ecoliwiki.net/colipedia/index.php/Category:Plasmids
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