What is there in it for me?Why should one need to know about sharepoint?

Oh that's very rude of you :) just kidding.There are various softwares and products and technologies coming everyday and we need to evaluate technology before
1. we invest our time to learn or invest infrastructure and resources as individual or organisation.
2. But sharepoint is like already invested into by millions and and not in last two-three years but last 10 years. and Incidently today is Sharepoint's Anniversary.....Let us wish happy birthday sharepoint
http://sharepoint.microsoft.com/blog/Pages/BlogPost.aspx?pID=968
3.Yes sharepoint today is decade old platform started with Sharepoint Portal Server 2001.
4.Every individual working in the ecosystem of any enterprise needs to know more or less about sharepoint.As a survey indicates those who know sharepoint are more preferred for job or promotion over those who don't

Apart from above,Sharepoint has something or other of interest for everyone in IT andBusiness
1.Business Analyst
2.Designer
3.Developer
4.Tester
5.Architect
6.Managers(HR,Marketing)
7.Data Entry Operators\receptionist
8.IT head
9.IT administrators
10.Content Editors
11.Content authors
12.Teachers
13.Students
What is use for everyone I will cover in next topic.Stay tuned.Let me catch my office bus now.