Reddit was much smaller than Digg for years: https://trends.google.com/trends/explore?date=2005-06-01%202... . Reddit was definitely "the little engine that could" for about 6 years, but it was really in 2010 when Digg imploded with the self-inflicted wounds of Digg v4 when Reddit really took off.
In other words, MySpace losing to Facebook seemed largely because Facebook just had a better product (cleaner, focused on real identities), while Digg, like Uber, largely was the victim of self-inflicted wounds.
Sorry, I know flickr sucks but it seems ncomment original website is now gone, the comics survived on flickr: https://www.flickr.com/photos/25036088@N06/sets/721576159246...
Edit: the innovation of the News Feed can't be overstated. IIRC, MySpace had nothing like it and it's hard to remember Facebook before it.
Rupert Murdoch bought Myspace for quite a sum as an attempt to get into the online business because all their attempts failed miserably for a lack of understanding and vision. The same drove myspace to its expected outcome.