OK, I buried the lede. The post is actually not the sex lives of algae. But I was fascinated that CNN chose to list this among the "story highlights" of this article. The story supports my sense that if biofuels are ever going to make sense, they are not going to be made from corn. The story also reinforces the notion that biofuels are just another type of solar energy, though they are in fact even more inefficient than our not-there-yet solar panels in converting sunlight to usable energy. The only reason biofuels currently look more economic than solar are the enormous operating subsidies and the much lower capital costs (though even the latter is open to argument since biofuels have huge capital costs in terms of land, but that generally is factored in as "zero" because the land is already being farmed.)
Before you get too excited about algae, note from the picture that the algae at this farm is grown in plastic packets that I would bet my life require more hydrocarbons to produce than the algae inside them provides.