Imagine the possibility of using one Email address to open as many as five Twitter accounts or other websites? You can get all your notifications in one place with ease. This is possible through a Gmail account.
Here’s how the trick works;
Gmail does not support periods when opening new email accounts. A period means adding dots, plus signs, underscore etc to email addresses. Hence, when you send an email and add periods in between the email address, the message will deliver to the same email address without periods.
Furthermore, Google has two domains for Gmail. As you already know, Google owns Gmail.
How to Use One Email to Open Various Online Profiles
Visit the sign-up page of the website you want to register for and add periods to the Gmail address that you have used on the website before. Or instead of using @gmail.com, use @googlemail.com.
The websites see this as a different email address but google sees them as the same email address.
I have used the same trick to open multiple twitter accounts.
Although, some modern websites understand this trick.