Web 2.0 is a trend in the use of World Wide Web technology and web design that aims to facilitate creativity, information sharing, and, most notably, collaboration among users. These concepts have led to the development and evolution of web-based communities and hosted services, such as social-networking sites, wikis, blogs, and folksonomies (the practice of catgorising content through tags). Although the term suggests a new version of the World Wide Web, it does not refer to an update to any technical specifications, but to changes in the ways software developers and end-users use the internet.

Windows SharePoint Services is the solution that enables you to create Web sites for information
sharing and document collaboration. Windows SharePoint Services - a key piece of the
information worker infrastructure delivered in Microsoft Windows Server 2003 - provides
additional functionality to the Microsoft Office system and other desktop applications, and it
serves as a platform for application development.
Office SharePoint Server 2007 builds on top of Windows SharePoint Services 3.0 to provide
additional capabilities including collaboration, portal, search, enterprise content management,

Microsoft Windows Services is the engine that allows administrators to create Web sites for
information sharing and document collaboration. Windows SharePoint Services provides
additional functionality to the Microsoft Office System and other desktop applications, as well as
serving as a plat form for application development. SharePoint sites provide communities for team

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collaboration, enabling users to work together on documents, tasks, and projects. The environment
for easy and flexible deployment, administration, and application development.

Microsoft SharePoint Products and Technologies (including SharePoint Portal Server and
Windows SharePoint Services) deliver highly scalable collaboration solutions with flexible
deployment and management tools. Windows SharePoint Services provides sites for team
collaboration, while Share Point Portal Server connects these sites, people, and business processes
-facilitating knowledge sharing and smart organizations. SharePoint Portal Server also extends
the capabilities of Windows SharePoint Services by providing organizational and management
tools for SharePoint sites, and by enabling teams to publish information to the entire organization.

If the users sharing that login will have the same permissions and there is no fear of them sharing a
password, then yes. Otherwise, this is discouraged.

In situations like, where the copy on write bit of a page is set and that page is shared by more than one process, the Kernel allocates new page and copies the content to the new page and the other processes retain their references to the old page. After copying the Kernel updates the page table entry with the new page number. Then Kernel decrements the reference count of the old pfdata table entry.

In cases like, where the copy on write bit is set and no processes are sharing the page, the Kernel allows the physical page to be reused by the processes. By doing so, it clears the copy on write bit and disassociates the page from its disk copy (if one exists), because other process may share the disk copy. Then it removes the pfdata table entry from the page-queue as the new copy of the virtual page is not on the swap device. It decrements the swap-use count for the page and if count drops to 0, frees the swap space.