When was the last time you checked your outstanding connection requests? Don't leave potential contacts hanging!
Any requests will show at the top right hand of your screen, against this icon:
The benefits of sending requests? Doing so will drive more traffic to your profile, increasing the chance they go on to visit your website and find out more about you. Once connected, you can send private messages to your new contacts too.
To ensure you don't miss any requests in future, turn on email notifications via profile settings.
Have you built any quality offline relationships that stemmed from a simple online connection request?