I use these for Hacker Monthly (http://hackermonthly.com http://hackermonthly.com): SendGrid (http://sendgrid.com http://sendgrid.com) - transactional emails (

I use these for Hacker Monthly (http://hackermonthly.com http://hackermonthly.com): SendGrid (http://sendgrid.com http://sendgrid.com) - transactional emails (sending digital issues to subscribers). MailChimp (http://mailchimp.com http://mailchimp.com) - newsletter. Linode (http://linode.com http://linode.com) - VPS hosting. Harvest (http://getharvest.com http://getharvest.com) - invoicing (for corporate customers + advertisers). FetchApp (http://fetchapp.com http://fetchapp.com) - digital delivery (for single issue purchase). Previously used E-Junkie. PayPal - payment gateway (sadly, one of the only choice for Malaysian). Gumroad (http://gumroad.com http://gumroad.com) - I use this as a 'PayPal alternative' for customers who wish to pay directly with their credit card (and refuse to have anything to do with PayPal). Pivotal Tracker (http://pivotaltracker.com http://pivotaltracker.com) - project management for HM's backend app ODesk (http://odesk.com http://odesk.com) - finding and managing my remote team (currently in the size of 4).