NextBillion - An Initiative of the William Davidson Institute at the University of Michigan

We admit it. We love our end-of-the-week task of picking our favorite tweets. It gives us a chance to reinforce some of the concepts we ponder all the time, while also thinking outside our normal boxes and including some organizations that aren’t normally featured on NextBillion.

And, don’t tell the boss, it’s a great excuse to kill time perusing the tweetosphere.

Plus one more bonus: It’s a great way to stay in touch with readers. So let us know you’re out there. Send us the tweets that strike your fancy each week – whether they make you think, or answer a question, or just generally brighten your day.Tweet general social enterprise topics to@NextBillion or NB managing editor @ScotterAnderson, global health topics to @NextBillionHC and financial inclusion topics to@NextBillionFI.

Be sure to check us out every week and, if you like what you see, spread the word.?

I drew a gigantic comic about vaccines for the Nib. I’ll be available all day for arguing. https://t.co/xhGI6lHSQE #hahaNo #vaccineswork

— Maki Scare-O (@sciencecomic) December 15, 2014

2014 was a tough year. I’m taking a minute to look back at some of the bright spots: http://t.co/Yd62lwuy1K pic.twitter.com/zu8Pqds419

— Bill Gates (@BillGates) December 16, 2014

Read why Ted London’s Roadmap for the BoP domain is my Editor’s Choice this month http://t.co/UnWNrC8S2O #IBForward #socent #bopbiz

— Caroline Ashley (@cashley122) December 15, 2014

#Bitcoin is the worst investment of 2014 http://t.co/4wUz9UeW3J pic.twitter.com/vtUVnuOC8P #FinTech via @qz

— FinTech HK (@FinTechHK) December 15, 2014

14 innovations that improved the world in 2014: http://t.co/BopxOsyerH pic.twitter.com/UkPEjZamBv #socinn #socent

— Nick Martin (@ncmart) December 16, 2014

Only large-scale efforts can end poverty, and they must be decentalized: http://t.co/C3fmoF9jyY #socent #bopbiz

— Mal Warwick (@malwarwick) December 17, 2014

Adios to a great 2014! Check out our year in review http://t.co/1EHTOG8DYt #impinv

— Calvert Foundation (@calvert_fdn) December 18, 2014

Oops! 3 lessons from aid flops: http://t.co/GruKTjSlUr #socent #startup #socinn #socialgood #globaldev pic.twitter.com/I5BnuJdvgG

— GlobalEnvision (@GlobalEnvision) December 18, 2014

.@DeanKarlan conversation with PBS @NewsHour on a behavioral economist’s view of charity http://t.co/3Lc8rnU4Jw

— IPA (@poverty_action) December 18, 2014

10 inspiring quotes from #globaldev leaders in 2014: http://t.co/hFRMhjZjiJ #impinv

— IIX (@asiaiix) December 19, 2014