Creating your own google API key for the Social Media Tabs google plus plugin is fairly quick and easy:
Go to https://code.google.com/apis/console#access.
Login to your google account
Click â€śCreate Projectâ€ť.
Under service list, click â€śoffâ€ť button next to â€śGoogle+ APIâ€ť to turn it on.
Accept both agreements.
From the left menu, Go to â€śAPI Accessâ€ť
Copy your API key and paste into the social media tabs settings page