Does anyone know how to effectively use this amazing medium for finding leads for both motivated sellers, and the buyers I'll need to finish the deals?

It might extend the closing date by a month or so, but if the seller is motivated, it can be done.  

I feel like other investors are more aware of the market and would therefore just flip the property themselves whereas individuals are more likely to fit the mold of the motivated seller.  

You will not be able to find out the exact reason until you talk to the agent/seller and find out their motivation.

I've had better experience with "fair market" transactions listed by motivated individuals.My advice is to have your agent to set up a search for vacant houses with key words like 'fixer-upper', 'probate', etc.

You want your property to be viewed by the largest buyer pool and although saving 6% in commission sounds great you would lose a large portion of motivated buyers because your property is not on their agent's radar.

The seller had a contract a week or two ago for in the $120's and the financing fell through - so they are motivated to sell and will accept less than the asking price.Any thoughts/comments/ideas are greatly appreciated, thanks!

With mailers, try to get lists of people who might be motivated to sell.

But I am very motivated to make this happen.

I have my own SEO tool and as soon as I made my website with investor carrot, it was already optimized for the top keywords for motivated sellers or motivated buyers.