After coming across this thread to see if maybe it offered up some good advice on this particular mic; I stopped everything to correct some bad information.
Anyone interested in getting best quality sound out of this particular mic (Blue YETI) should disregard the "best answer" and no disrespect to the one who responded with an answer. Anyone who tries to help another out gets my respect regardless.
First off, many just starting out seem to confuse some of the same things.
If I go out and get the same mic, I will get the same quality! Similar misunderstandings include, this mic has all great reviews so it's going to just sound great!
Reality is... The mic is just one tool and it takes much more than a quality microphone to get quality results.
A proper pre-amp with phantom power is always necessary with traditional condenser mics yet USB condenser mics like the blue yeti convert analog to digital w/built-in power supply. USB mics are simple and easy but XLR mics will always have an advantage as a good dedicated audio interface increases the quality and allows for more control.
That being said, they are coming out with a kind of interface for USB mics although the technology is still new and has nothing to do with converting signals; just improves quality.
Now if you own a USB mic and want the best quality possible...
Location: Choose an area with the dryest possible feedback... A room with carpet over a wood or hard surface. High ceilings are not good either. If possible, a room with uneven walls and obstacles is best. The best possible place to prevent audio waves from returning to the source.
Best to use a boomstand with shockmount and pop-filter even if they claim to have a built in pop filter, get an external one anyways.
Mic presence: Many blogs, articles, including the only answer here give advice to record close to the mic. This is bad advice and very bad practice. The pop filter should be around 4-6" from mic and you should record vocals at least 12-18" away. Turn the gain as low as possible on the mic.
Depending on the DAW and internal sound card, the input gain should be set at a low db level as well. When mixing and mastering you can increase the vocal tracks volume and you will notice white noise is at a minimum.
Next is your DAW and CPU. I use Logic Pro X as my main production suite and Adobe audition for in-depth audio adjustments and sound correction/enhancements.
Technical knowledge is going to give you a better outcome.
I own a Blue Yeti and a Rode NT1-A... I have a decent presonus audiobox audio interface for my RODE which adds to the rich sound quality. For the Blue Yeti, I use the many EQ options and plug-ins within my DAW, Logic Pro X has some excellent virtual racks that will do the job well.
Follow this advice and understand the mic just captures and some better than others but none will do the job alone.
Remember... Don't eat the mic! Stay back! Keep the gain low! Record at low volume! Wear headphones while recording! Dry out the recording area (no echo or natural reverb) Boom stand, Shock mount, pop filter!...
P.s. If you are doing podcasts... The best virtual pre-amp is tube-amp. Record in Mono! Learn automation! Sound bytes should be in stereo and panned slightly.