As much I'm an old school fan of vinyl and cassettes (always hated CDs), digital and the Web rules. Sounds from across the globe from musicians that will never be filtered through the mainstream media outlets.
Another fantastic compilation I stumbled upon somehow, this one out of France. The BC site linked below only has two 'Best Tunes' comps but their main site is a virtual treasure trove of music. The comps are great introductions to music that may not otherwise get heard.
Artists I've never heard of but every track I've heard so far has been top notch. The 2013 comp is downloading now.
The 'Best Tunes' tag fits well.