E-learning / Online Help
https://analyticsacademy.withgoogle.com/explorer
https://support.google.com/analytics#
YouTube / Official Blog / Google+ SEA Channel
http://youtube.com/user/googleanalytics
http://analytics.blogspot.sg/
https://plus.google.com/communities/113297019848062531242
Heatmap Service
http://www.crazyegg.com/themefuse-90-days
Keyword/Competitive Research
https://www.google.com/webmasters/tools/home?hl=en
https://www.semrush.com/de/product/order/1315400596.html?promocode=QCG-2B73T96Q
https://adwords.google.com/ko/KeywordPlanner/
Developer Guides
https://developers.google.com/analytics/devguides/
https://ga-dev-tools.appspot.com/
Google Sheets Guide (Custom Dashboarding)
https://developers.google.com/analytics/solutions/google-analytics-spreadsheet-add-on
Google Analytics Partner Agency Search
http://www.qcg.com.sg
https://www.google.com/analytics/partners/search/services