Interested in sending bulk mails

Hi,

im totally new to the bulk email thing
before i just worked with social marketing at facebook, mass messaging and so on...
now i gathered many emails with ulead pro...
my question is: what can i do with this gathered emails? and how?
i read something good about send blaster 2 and atomic mail sender?
which safetys i need to know and what do i need to use it?
sorry if my questions sound stupid, as i said im totally new to email marketing

thanks for your answers

Try out atomic mail sender or interspire. They are easy to use and setup.