This is the gold standard. In nearly six thousand (!) posts since 2002, @Dereklowe has covered major clinical advances, technologies, business shake-ups, you name it. Check out the "Categories" for repeating segments.
Vandon at @ergo_bio analyzes recent biotech happenings (acquisitions, partnerships, scientific advances) in great depth. He also has a terrific "Advances" series covering major biotech breakthroughs.
Since last summer, @NikoMcCarty has shared a rundown of this week's synthetic biology news and deep dives into scientific advances. Starting in January, he's upped his output: at least two posts a week.
@MattyKirsh is helping @Ginkgo build the "back-end" of synthetic biology. On his blog, he writes about how and why business decisions are shaping his industry, and what's coming next.
The @a16z team covers a lot of ground in these blogs, from the cost of healthcare to emerging, exciting biology and business models, to rhapsodizing about health innovation: "It's time to build!"
@murphey_richard has become an essential source of life sciences commentary by focusing intently on data-driven insights, including deep dives into fundraising and valuations that are both informative and educational.
@realNathanCheng has created some of the most thorough overviews of longevity startups and technologies around. A great resource for an emerging area of innovation.