Film explains pronunciation techniques used in Russian language classroom. Features Professor Pierre C. Oustinoff in the classroom. One of the reels is cut and cannot be viewed. Digitized from the original 16mm black and white reel in 2013. From the University Archives Audiovisual Collection, Special Collections Research Center, Earl Gregg Swem Library, College of William and Mary. UA07. Acc 1982.066.
I found the model of the speech organs that show where to place your tongue and lips very helpful.
Starting at about 19 minutes in, they talk about requiring students of Russian in this vintage class to practice pronunciation by taping themselves. Figuring out how to play a sample online then record ourselves and saving MP3 files to playback and analyze could be helpful to the solo online learner.
Another way of testing to see if you can be understood ... talk to the Google Translator site using Chrome or your smartphone app.