Tool recommendation: Polar personal knowledge repository

Po­lar “makes it easy to man­age your read­ing.”

A pow­er­ful doc­u­ment man­ager for Mac, Win­dows, and Linux for man­ag­ing web con­tent, books, and notes—sup­ports tag­ging, an­no­ta­tion, high­light­ing and keeps track of your read­ing progress.

I strongly be­lieve in the value of writ­ing things down, an­no­tat­ing and flash­cards. (See About This Web­site and Spaced Rep­e­ti­tion by Gw­ern Bran­wen for high-qual­ity dis­cus­sion on these top­ics.)

Some caveats: I’ve only used Po­lar for a short time, and I have not yet tried all the fea­tures. For ex­am­ple, I haven’t tried cre­at­ing flash­cards.

If you try it, feel free to share your ex­pe­riences. Also, if you pre­fer a differ­ent tool, I’d be in­ter­ested in hear­ing about it.