http://populr.me[2] - Worked quickly to mock up the concept and show it to mobile app devs to get their feedback. pwd protection too. http://efabless.populr.me/linktexting[3] (old mockup)

http://linktally.com[4] - Blog post popularity. Blogpostmetrics.com (built this with my friend)

[http://ifttt.com-[5] ] reminders.

http://jetstrap.com[6] Front end bootstrap changes. i like: http://webflow.com[7]

Google Alerts[8] - sms app distribution content.

Hnsearch.com[9] needs no explanation. Hn.algolia

Freelancer.com[10] to find workers for scraping emails of mobile app devs to find the best apps.

Producthunt.com[11] to find cool tools for every aspect of my startup.

Untorch.com[12] - for betalisting a product.

KillerStartups.com[13] - $169 to get listed in a featured blog post.

StartupLister.com[14] - $50 bucks and we got some paid traffic from it.

Leadfeeder.com[15] - free.

Compose.io[16] - for database shtuff.

Heroku.com[17] -- you know what it's for. :)

Hipchat[18] - for team comms.

Stripe[19] - gotta love it.

Chrrp[20] for Stripe notifications.

ReferralSaasquatch[21] - for Customer referral maximization. Designed for SAAS.

Medium[22] We use this for blogging and had a few very viral posts (over 2K shares and 25K visits + 60% read rate.)

Twilio[25]

SSL Certificate purchased via Godaddy.com

Mandrill.[26]

YouCanBook.me (setup kumarovski.me) and it works great in terms of minimizing email time. Just send them the link and they'll click on an available time.

What tools do you use for your SAAS?