One of the nice features of Mashable is their compilations of different services, products, and articles. One of the bad features of Mashable is the slightness of the information. Their list of 30+ Mailing List Services is a perfect example. Here’s a typical entry.
AMailSender.com - Send mass emails, track their use, verify email addresses and much more.
Here are some other compilations NPOs might find helpful:
CMS Toolbox: 80+ Open Source Content Management Systems
DOWNLOAD EVERYTHING: 30+ Firefox Add-ons For Downloading Images, Videos & Files
FLICKR TOOLBOX: 100+ Tools For Flickr Addicts
Freelancers’ Toolbox - 30+ Online Freelance Resources
GMAIL TOOLBOX: 60+ Tools For Gmail
HIGH SPEED DOWNLOADS: 60+ Download Managers
INSTANT MESSAGING TOOLBOX: 90+ IM Tools
ONLINE BUSINESS TOOLBOX: 230+ Tools for Running a Business Online
ONLINE POLLING TOOLBOX: 40+ Online Polling Sites
ONLINE STORAGE: 80+ File Hosting and Sharing Sites
Q&A TOOLBOX: 30+ Tools For Questions and Advice
Turn Wordpress into a Personal Hub - 30+ Tools
WordPress 2-Column Themes - 30+ Themes
WordPress 3-Column Themes - 30+ Themes