In the past year, registered Twitter accounts have grown more than 1,500%, according to Biz Stone, Co-Founder of Twitter. With such an explosion of new voices, that’s a lot of tweets and noise for nonprofit campaigners to filter through.  So if you can only carve out 20 minutes a day to follow nonprofit leaders and thinkers discussing nonprofit issues on Twitter, who would they be? Tough question, right? There are so many smart folks. Here’s my top 10. Feel free to add your top picks too in the comments section.  Note: I have kept the list to only include one person per organization. And don’t forget to follow @Care2frogloop – Frogloop’s very own Twitter feed.

@jocelynharmon – Jocelyn, who has been working in the nonprofit sector for over a decade tweets about online fundraising and how to connect with donors, email marketing, and online advocacy. Jocelyn is also the Director of Nonprofit Services for Care2.com, the company who runs the Care2Frogloop blog.

@kanter – The go-to expert on social media for nonprofits.

@mobileactive – One of the best sources for information on integrating mobile into campaigns.

@NancySchwartz – As a nonprofit marketer, Nancy tweets about online and offline communications including email copywriting, fundraising strategy, and nonprofit resources she discovers.

@nptechblogs – Tweets about the latest articles from the top nonprofit blogs.