Meta Tag consists of three main parts 1)Title 2) Keywords and 3)Description
all Three of them should be very relevant to your website, and it requires deep Study
You will get many of the solutions online, terranethosting.com is also good and cheaper place whee you can create your website and also can host it with a perfect domain
Yes Link Exchange alone can be sufficient but only if to Quality Site and it should be a continuous process - you should always keep on doing link exchange
When i start my Desktop it first hangs for 10 minutes and then starts, then when i search anything in Google my browser also hangs for few seconds and then gives the result
You can select any of the environment but it depends on your skills,
in which field your are perfect also select the environment which will be effective for your site
Creating a google group is very simple.You need to create a account on google and then visit groups.Google.com
and fill the form and enter your details and add friends to your group
Definitely you can have 3 keywords work on three keywords but the best thing is to use a long tail keyword so that the three keywords are represented by 1 keyword only