LibHunt - LibHunt tracks mentions of software libraries on relevant social networks. Based on that data, you can find the most popular projects and their alternatives.

The Security Checklist - The Practical Security Checklist for Web Developers

Ruby Toolbox - Explore and compare open source Ruby libraries

SafeBase - SafeBase is the interactive security portal to share your security posture, automate access to sensitive compliance information, and subscribe to vendor security program updates.

GitNews Web - Trending repositories from GitHub, HackerNews & Reddit

WordPress Security Scanner - Check if your WordPress site has known vulnerabilities