PR X VH - On demand PR campaigns for free
pressfarm - Pressfarm helps entrepreneurs find journalists to write about their startups.
Promotehour - Free list of 1100+ media outlets to pitch your startup
Press Hunt - Press Hunt saves you hundreds of hours by aggregating data on almost 400,000 journalists and reporters in one place, complete with their writing interests and contact info.
Hey Press - Hey Press is a searchable media database. Find the most relevant journalist.
myStartupTool - The biggest list of directories (253) to submit your startup. Improve your SEO and gain exposure - suitable for all startups.