SharePoint Group - Site Member (Contribute)

When a SharePoint site is created, by default 3 SharePoint groups are created

Site Owners - Full control

Site Members - Contribute

Site Visitors - Read

Below are the permissions you get when you are a Site Member (Contribute)

List Permissions

Add Items - Add items to lists and add documents to document libraries.

Edit Items - Edit items in lists, edit documents in document libraries, and customize Web Part Pages in document libraries.

Delete Items - Delete items from a list and documents from a document library.

View Items - View items in lists and documents in document libraries.

Open Items - View the source of documents with server-side file handlers.

View Versions - View past versions of a list item or document.

Delete Versions - Delete past versions of a list item or document.

Create Alerts - Create alerts.

View Application Pages - View forms, views, and application pages. Enumerate lists.

Site Permissions

Browse Directories - Enumerate files and folders in a Web site using SharePoint Designer and Web DAV interfaces.

View Pages - View pages in a Web site.

Browse User Information - View information about users of the Web site.

Use Remote Interfaces - Use SOAP, Web DAV, the Client Object Model or SharePoint Designer interfaces to access the Web site.

Use Client Integration Features - Use features which launch client applications. Without this permission, users will have to work on documents locally and upload their changes.

Open - Allows users to open a Web site, list, or folder in order to access items inside that container.

Edit Personal User Information - Allows a user to change his or her own user information, such as adding a picture.

Personal Permissions

Manage Personal Views - Create, change, and delete personal views of lists.

Add/Remove Personal Web Parts - Add or remove personal Web Parts on a Web Part Page.

Update Personal Web Parts - Update Web Parts to display personalized information.