Hands-on introduction to Salesforce
For those who is interested in Salesforce development, or who needs to take part.
There are quite a lots of online self-learning resources provided by SFDC, they are available at https://trailhead.salesforce.com
I pick some “must have” modules that you can start with and shouldn’t miss them.
Learn Salesforce with Trailhead
Register a “trailhead” playground for tutorials
(You can use your personal email address to register, as you can complete every tutorial and badge yourself)
https://trailhead.salesforce.com/trails/learn_salesforce_with_trailheadSell Lightning Fast with Sales Cloud
Introduce SFDC “Sales Cloud” on business user perspective, that helps you to understand what and why and how we are going to do.
https://trailhead.salesforce.com/trails/lex_end_userAdmin Beginner
System administration perspective on configuration
https://trailhead.salesforce.com/trails/force_com_admin_beginnerDeveloper Beginner
System administration / Developer perspective on customization
https://trailhead.salesforce.com/trails/force_com_dev_beginnerLightning Development
Developer perspective on customization, specifically on LEX development
https://trailhead.salesforce.com/trails/force_com_dev_intermediate/modules/lex_dev_lc_basics
Best practices
Apex Coding Best Practices (Must Read)
https://developer.salesforce.com/page/Apex_Code_Best_Practices
Apex Trigger Best Practices
https://developer.salesforce.com/page/Trigger_Frameworks_and_Apex_Trigger_Best_Practices
Useful Tools, Tricks & Reference
Trailhead | The fun way to learn Salesforce
https://trailhead.salesforce.com/
Workbench is a powerful, web-based suite of tools designed for administrators and developers to interact with Salesforce.com organizations via the Force.com APIs
https://workbench.developerforce.com
More Salesforce Tools
https://developer.salesforce.com/page/Tools
AppExchange is the Salesforce store. Our ready-to-install enterprise solutions let you extend Salesforce with business apps and components for every department and industry, including sales, marketing, customer service, and more.
https://appexchange.salesforce.com
Lightning Pre-fill form
http://www.salesforceben.com/migrate-your-salesforce-url-hacks-to-actions/
Salesforce Lightning for Gmail - Chrome Web Store
https://chrome.google.com/webstore/detail/salesforce-lightning-for/jjghhkepijgakdammjldcbnjehfkfmha
A hands-on blog for SFDC
http://www.salesforceben.com/
Extension to add a metadata layout on top of the standard Salesforce UI to improve the productivity and joy of Salesforce configuration, development, and integration work (MUST HAVE)
https://chrome.google.com/webstore/detail/salesforce-inspector/aodjmnfhjibkcdimpodiifdjnnncaafh?hl=en