The Landing Page Cookbook - A guide for makers who want to create better landing pages.
Startup Stash - A curated directory of 400 resources & tools for startups
BlueSoap.com.au - Smart web solutions
Indie Letters - Not a marketing but "growth" marketing newsletter for makers
Generator by DesignModo - Easy way to make a landing page for your startup
Growth Marketing Checklists - Checklists to help optimise your marketing efforts