https://www.infallibletechie.com/2017/08/how-to-create-global-picklist-value.html
Default Values formula in Picklist Fields
https://www.infallibletechie.com/2017/08/default-values-formula-in-picklist.html
Session-Based Permission Sets
https://www.infallibletechie.com/2017/08/session-based-permission-sets-in.html
Posts in private and unlisted Chatter groups have a seen-by count that shows the number of people who have seen a post
Re-assigning the approval request in Approval process is available in lightning experience
Lightning for Gmail: General Availability and Improved Efficiency
Lightning for Gmail is now generally available, and with our latest features, your team gets a boost in productivity. And reps get to relate emails to Salesforce before sending them. Crafting emails is faster with the use of Lightning email templates.
Lightning Voice Is Now Lightning Dialer
For Lightning Voice Setup – https://www.infallibletechie.com/2017/07/lightning-voice.html
Relevant Activities with Smart Email Matching (Beta) with Einstein Automated Contacts
https://releasenotes.docs.salesforce.com/en-us/summer17/release-notes/adc_overview.htm
Streamline Support for Customers with Community 360 (Pilot)
http://releasenotes.docs.salesforce.com/en-us/summer17/release-notes/rn_community_360.htm
https://www.infallibletechie.com/2017/07/streamline-support-for-customers-with.html
Snap-In Chats lightning Component in Salesforce Community Cloud
https://www.infallibletechie.com/2017/07/how-to-add-snap-ins-chat-component-in.html
Facebook Inbox Message Conversation
Do more with Facebook in Social Studio. Show Facebook Inbox message conversation in Marketing Cloud in Salesforce.
Lightning Data Service
https://www.infallibletechie.com/2017/07/lightning-data-service-in-salesforce.html
Embedded Login Enables Users to Log In to Your Website
Salesforce introduces the Embedded Login feature to authenticate your website’s visitors. Your web developers can add login capabilities to the website with just a few lines of HTML. Embedded Login connects your website with Salesforce. This feature works for communities created with either our Communities or Salesforce Identity products. This feature is new in both Lightning Experience and Salesforce Classic.
Earn your badge from Salesforce
https://trailhead.salesforce.com/modules/summer_17/units/summer_17_sales