Email Octopus
Email marketing for next to nothing, via Amazon SES. Currently you only have to pay your Amazon SES fees. They give you 62,000 emails a month for free, so most of our users don’t pay a penny.
Optimizely
The most popular website A/B testing tool on the planet! Visually optimize your website easily and effectively. Make sure you’re getting enough traffic first.
Growthhackers.com
A community of growth hackers sharing insights news and articles. Not really a tool, but an invaluable resource.
SumoMe
SumoMe is a suite of free tools that’s used to grow your website’s traffic. TheSumoMe tools are easy to install and work on any website. Tools include heatmaps to lead collection. Super easy to implement.
Buzzsumo
Not related to Sumome or Noah Kagan. It allows you analyze what content performs best for any topic or competitor.
Facebook Audience insights
The more customer insights you have, the better you’re equipped to deliver meaningful messages to people. A tool designed to help marketers learn more about their target audiences
Crowdfire
Easily follow and unfollow people on twitter and Instagram, powerful when combined with automation scripts via imacors.
Instagress
Best answer on how to get more followers on Instagram. It’s never been so easy and fast. Set it up, and let it do the work.
Hemingway
Great writing tool, nice and simple and lets you know how easily your posts are to read.
Warrior Forum
Another invaluable resource for online marketers. Kind of like growth hackers.com, but a little bit more black hat.
Buffer
Buffer makes it super easy to share any page you’re reading. Keep your Buffer topped up and we automatically share them for you through the day. I’d recommend using the chrome extension too.
Tweetdeck
Track all your twitter activity, get the desktop app and filter based on hashtags and many other searches. You can also schedule tweets.
Screaming Frog SEO Spider
The Screaming Frog SEO Spider is a small desktop program (PC or Mac) which crawls websites’ links, images, CSS, script and apps from an SEO perspective.
Wordpress SEO by Yoast
SEO for WordPress doesn't get easier.
Gumroad
Gumroad enables creators to sell directly to their audience — so that they can make a living doing what they love. It’s just 5% + 25¢ per transaction.
Crazy Egg
Crazy Egg is like a pair of x-ray glasses that lets you see exactly what people are doing on your website. Like, showing you where people are clicking or where they aren't. Heatmaps.
HipChat
HipChat lets you bring the office with you wherever you go. Remember MSN? It’s like that for work.
IFTTT
Put the internet to work for you by IFTTT IF lets you create powerful connections with one simple statement — if this then that. Connect your social networks to cross post. Ps: don't automate everything. Don't be lazy.
Honey Badger
Honeybadger will dig up “juicy” information about the site you are on At the mere click of a button. Superb for researching clients or trying to find a direct contact for a website.