Proof and submit. You may also find it useful to look at the U-Study WWW Virtual Library Handbook for more useful hints and information. Most of all it allows you time to critically analyse the information and to produce an original paper from the information you have gathered. Do some preliminary reading to make sure you understand the topic, and to get some idea of the amount of information available to you. Insufficient or overwhelming amounts of information are both good reasons to abandon or alter your topic.
Encyclopedias are helpful here.
Browsing the Library's online catalogue or the periodical indexes for materials on your topic are other means of finding out how much information is available. Make sure your topic is narrow enough so that you can thoroughly research and analyse it, and to arrive at your own conclusions. A topic that is not narrowed enough will result in a paper that is a disunified collection of facts, that is insufficiently critical, and is too general in its conclusions. Prepare a working outline of the major headings for your paper from the information you have gathered so far. Derive from this the points you intend to address or the questions that you will answer.