On down days like this it's always good to add to your positions, a consistent strategy of buying on the low days and waiting for the new highs to take some profits has proven to be very successful, but it takes discipline and a methodological approach.
This new site (to which I contributed) gives a nice sector-based overview of what is available out there, and what sticks out when it comes to quality and potential.
Have a look and let us know what you think !