Google Charts — Google developer charts.
Balsamiq — Wireframe mockups and interfaces.
Framer — Design interactive prototypes for web & mobile.
How Much to Make — Costs of building an app, idea, etc. estimator — great for getting ballpark estimations, particularly if you're not a developer yourself!
Loband — Website that reduces webpages to the bare bones.
Marvel — Mobile & web prototyping for designers.
OpenBTS — Open source software project for hardware-enabled mobile networks.
Origami Studio — Design prototyping.
Offline First Resources — Everything you need to know to create offline-first apps.
impress.js — Presentation framework based on the power of CSS3 transforms and transitions.
PicApp — App image generator.
Placeit — Free product mockups & templates.
TinyPNG — Compress PNG images while preserving transparency.
Lynda — Professional online courses, classes, training, tutorials.
MAMP — Local server environment.
Sublime Text — Text editor for code, markup and prose.
Anita Borg Institute — Social enterprise founded on the belief that women are vital to building technology that the world needs. Amazing network of individuals.
AppCamp4Girls — One-week summer day program where girls can put their creative powers to work, designing and building apps, while learning more about the business of software and being inspired by women mentors in the field.
Grace Hopper — World's largest gathering of women technologists.
Hearmecode.org — Free, beginner-friendly coding classes for women, by women.
Systers — Forum for all women involved in the technical aspects of computing. The community has over 5,500 members from at least 60 countries around the world.
Hearth — Decentralized website publishing.