We want to notify group of users whenever a record is created/edited . Can anyone please let me know what is the best way to achieve this? We thought we can achieve this easily by chatter groups but we came to know that one user can follow only 500 records.
You should probably create workflow rules for the desired objects. When you create the rule, you have the option to run it every time a record is inserted. You can also set other conditions for the rule to run.
Then you should add an action for the rule by clicking the "Edit" button.
And finally you can add your action. Which should be Email Alert, in your case. In the next page you will be able to select specific users to send the message, or groups of users.