Promotehour - Free list of 1100+ media outlets to pitch your startup
Startup Toolkit - Interactive how-to guides to launch your startup
myStartupTool - The biggest list of directories (253) to submit your startup. Improve your SEO and gain exposure - suitable for all startups.
Bites - Ready to use modals and popups
pressfarm - Pressfarm helps entrepreneurs find journalists to write about their startups.
Become an Indie Hacker - The ultimate resource for starting profitable side projects