SendOut - Affordable email marketing for bloggers and influencers
Postacard - Text a photo to send it as a postcard for $3.
Mailblast - Email marketing on a budget using Amazon SES
Felt for iPhone - Handwritten cards for the modern world
Platformly - Platformly is a suite of tools for multi-channel marketing automation.
NanaGram - Text your photos and we'll mail 4x6 prints to your Nana.