This is a very broad heading. People use an online advertising page for a variety of reasons. Perhaps your having a birthday party, art exhibition, fundraising day. Whatever the occasion is, it's important to advertise and promote it to whoever you want to attend.
I design a professional full colored webpage which outlines all the information pertaining to your event. i.e., Day, time, venue, occasion, entrance fee, etc.
You then send the corresponding link to the webpage via e-mail to all of the people you want to invite there. I offer to host the advertising page on my server until your event is over.

Request a price quote by sending an e-mail to info@mikeldesign.com outlining what you want to advertise.