Below is an outline of the business services and tools in the digital marketing tools index.

Click on the link below each section for a page with more detail.

Competitor Research

HeatSync – $ – free plan with basic features, pro plan has competitor data from several sources.
SimilarWeb – $$$ – free overview of basic traffic details, paid plan for more in-depth information.
Alexa – $$ – free overview of basic traffic details, paid plan for more in-depth information.
Rival IQ – $$$ – track competitors across social, SEO and SEM.
Compete – $$$ – detailed traffic data and consumer behavior data.
BuiltWith – find out what technologies and services power the websites of your competitors.
SimilarTech – find out what technologies and services power the websites of your competitors.
Wayback Machine – free – archives copies of web pages, so you can see how they have changed.

Business Dashboards

Cyfe – $ – free basic plan and low-cost paid plans.
Dasheroo – $ – free basic plan and low-cost paid plans.
Geckoboard – $$ – premium-priced plans and 30 day free trial.
Leftronic – $$ –  premium-priced plans with 14 day free trial.

Team Chat

Slack – has a tremendous amount of buzz, many users rave about the UI.
HipChat – made by Atlassian, who makes many developer tools.
Flowdock – combines team chat with team inbox.
Campfire – made by same company as the popular Basecamp project management tool.

Project Management

Basecamp – popular project management tool. Streamlined, easy to use, many people already familiar with it.
Asana – project management tool that seems to have great buzz. Touts usage by large, leading companies.
Trello – visual, easy to use tool — like digital sticky-notes.
Kanban Tool – visual project management tool based on Kanban boards.
TeamGantt – project planning software based on Gantt charts.
Wimi – project management software and online collaboration platform.
iDoneThis – very interesting! Simple team performance management.

Customer Support

Freshdesk – 30 day free trial.
Groove – 30 day free trial.
Zendesk – 30 day free trial.
UserVoice – 30 day free trial.
Kayako – 30 day free trial.
Help Scout – 15 day free trial.
Intercom – 14 day free trial.
Customer Thermometer – free trial for 10 surveys.
Tender Support – focused on simplicity.
Temper – focused on simplicity.
Desk – part of Salesforce (formerly Assistly).
Get Satisfaction – no pricing on website.

Live Chat

LiveChat -30 day free trial with no credit card required.
Zopim (by Zendesk) – 14 day free trial with no credit card required. Free Lite plan for 1 agent with 1 concurrent chat.
LivePerson – Free plan with 1 log-in, unlimited conversations, up to 150 content banners / month.
Olark – 14 day free trial. Free plan with 1 operator and 20 chats per month.
SnapEngage – 15 day free trial with no credit card required.
Zoho SalesIQ – 15 day free trial with no credit card required. Free plan with 2 users, 100 chat sessions per month.

Freelancer Help

Upwork – large freelance marketplace formed from merger of oDesk and Elance.
Freelancer – large freelance marketplace.
Guru – large freelance marketplace.

Business Plan Generators

LivePlan – online business plan creator service.
Business Plan Pro – business plan software.
Bplans – business planning resources and business plan samples.
enloop – online business plan writing app.

Proposal Generators

Quote Roller – $ – 14 day free trial with no credit card required.
Bidsketch – $ – 14 day free trial.
Proposify – $ – 14 day free trial with no credit card required.
Quotient – $ – 30 day free trial with no credit card required.
Proposable – $ – 14 day free trial with no credit card required.
QuoteRobot – $ – 14 day free trial with no credit card required.
Osmosis – $ – 14 day free trial with no credit card required.
TinderBox – ? – website does not list pricing.
Privia – $ – helps companies bidding on commercial, federal, state or local contracts.

Webinars / Meetings

ClickWebinar – 30 day free trial. Webinar plans start at $40 per month.
GoToWebinar – 30 day free trial. Webinar plans start at $109 per month.
Webex – Webinar plans start at $99 per month.
Fuze – Webinar plans start at $48 per user per month.
AnyMeeting – free trial. Webinar plans start at $78 per month.

Other

Case Study Buddy – service specializing in producing case studies.

Courses & Education

MarketingProfs University – B2B lead roundup course.
Online Marketing Institute – BtoB digital marketing courses.

Forums & Hangouts

Inbound.org – members vote and comment on marketing links with an emphasis on inbound.
GrowthHackers – members vote and comment on growth-focused marketing links.
/r/webmarketing/ – one of the larger web marketing subreddits at Reddit.
/r/marketing/ – the largest general marketing subreddit at Reddit.

Podcasts

Mixergy – nearly daily, Andrew Warner interviews expert entrepreneurs. *highly recommended*
Duct Tape Marketing – weekly, John Jantsch interviews experts in small business marketing.
Build a Better Agency – weekly, interviews with experts, helping agency owners and leaders.
#AskGaryVee – very frequent, Gary Vaynerchuck answers questions about marketing, social media, and entrepreneurship.
Marketing Over Coffee – weekly, discussion of what’s new in marketing.
The Boss Show – weekly, workplace wisdom with heart and humor.

YouTube Channels

Google Small Business – variety of digital marketing topics, some about Google, some not.
Hubspot – presentations from INBOUND conference, plus some Hubspot-specific videos.