give the freedom to user,form group spontaneously

1.with the XML technique,the articles of a user can be process freely;

2.a user can build a group with several goals spontaneously,like QQ group;

3.before a user creating a goal really,a searching process should be taken for avoiding some duplicate goal;

4.Maybe,if a user build a group,a approving process should be taken for avoiding some duplicate or improper group to be found.