This is embarrassing, I studied philosophy and worked as a researcher in the discipline for more than 20 years, and I've never heard of "rationalist blogs." Of course, I know what "rationalism" would be as an old philosophical tradition. I also call myself an anti-irrationalist (which is different from rationalism in the sense I know).
Can someone explain to me what "rationalist blogs" and the "rationalists" behind them are? (Of course, I could use Google but I'd like to tap into HN's crowd intelligence in this case.)