Elon Musk, who's still running his victory lap after his electric car company Tesla proved its detractors wrong, has once again gone out to bat for his "fav" bitcoin alternative—sending its price sharply higher. Musk, the chief executive of both Tesla and aerospace manufacturer SpaceX, yesterday tweeted his support of minor bitcoin rival dogecoin, saying "dogs rock" and "they have the best coin." Musk's tongue-in-cheek comments, which sent the dogecoin price up by around 5% yesterday, come after a thumping 12-months for dogecoin, one of the oldest alternatives to bitcoin. The dogecoin price is up around 30% on this ... (full story)