Admissions process help?

<p>I am a rising senior (going to be) and I was wondering if any of you in college with experience could tell me about what I should look out for or be doing during my summer. Is there any website besides collegeboard.com or commonapp.org which I should, would, know about that would benefit me?
Is there any website in particular for skimming and getting a brief overview of the university and its aspects? Do find it efficient to do appplications online or is it safer by mail? I'm worried that if it's online I prefer not to give out my credit card number. Any comments or words of advice are highly apppreciated! Thanks! I know the post was long!</p>

<p>Online is plenty safe.</p>