SharePoint alerts are email notifications that are sent by SharePoint when something changes in a document library, Sharepoint calendar, or list (ie. Issues log, task list, announcements, contact list, office supply request list). Alerts can be setup for:

• Whole lists or library
• Individual item (folder, document, or item such as a task or event)
• Sharepoint Search

Alerts come in e-mail or as text messages to your mobile phone, at the interval you specify, to let you know when specific items change.

• Create an Alert
• Manage, View or Delete an Alert