For most of you checking email frequently when you are browsing the Internet is an additive habit, so to save your time notifiers are used.Here are some useful Google Gmail notifier which will notify you whenever you receive a new message into your inbox.
People using Mozilla firefox can download Gmail manager addon from here that will install a basic Gmail icon with latest unread email counts in the bottom of your status bar of Firefox window.Along with this you can switch in between multiple gmail accounts and customize the preference! A nifty addon for managing your Gmail account.
Related : Opera Gmail Notifier
Here is a Gmail taskbar notifier, a work around if you are using browser like Safari, Google chrome and still want to get notified about Gmail emails – This utility called Gdow is a basic configurable taskbar notifier that will check for new emails frequently.Your new messages will appear in the form of small snippet whose background color, text can be customized according to your needs! Download G dow from here (English version).
So if you are using browsers like Google chrome then this app will benefit as it resides in your taskbar and notifies about the latest Gmail emails!