In light of recent events, chances are the CC #ís we use online are going to be stolen at some point. For that reason itís best to try and limit any potential damage. Using a single credit card with just enough of a limit to conduct your online transactions makes it easier to monitor statements for any strange charges. Plus, any fraud is isolated to that one card. Also, refrain from using a debit card online since they donít carry the consumer legal protections as credit cards.
Normally this is the part where the experts start talking about SSL and tells you to check for the lock symbol. In my experience just about every legit website accepting credit cards is now SSL-enabled. So the better advice is to make sure your actually on the legit website you think you are on. Otherwise SSL isnít going to matter much anyway.