Honestly am confuse on to describe my site

late this week i was just wondering how to describe my site to my users,when i use word of mouth to tell about the site they ask what is it all about,i simply tell them is where to meet new people,but i felt am not getting it because there is alot of site there,honestly i need you help,i need get one idea on how to make the site,i was like building a custom mod that will allow my users put in their affiliate code like google adsense on my site each time they write blog,but i was discourage by a proffesional,please i need and idea that will make people stay on my site and how you guys think i can make this more interactive,i have just 300 members,@ list i want to start learning how to make them come back,please i need your advice.thanks.pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee