:## Analysis of Source Material
1. Core Topic & Audience:
The core topic of the article is the newly released Google feature allowing users to change their Gmail address while retaining all existing data and functionality. It addresses users who have outdated or unprofessional Gmail addresses they wish to update without the hassle of migrating accounts and losing data. The tone is informative and excited, aimed at a general internet user base familiar with Gmail.
2. Optimal Keywords:
* Primary Topic: Gmail Address Change
* Primary keyword: change gmail address
* secondary Keywords:
* gmail alias
* update gmail address
* google account email change
* gmail username change
* gmail address update
* google account alias
* gmail data migration (addressed as not needed)
* gmail account settings
* gmail email change limit
* gmail email change steps
* google account update