Image sourcing, resizing and uploading

Hi - we are launching a new version of our existing website and for each business featured, we need to source 5 images, usually from their own website, resize those images to 300 x 300 px and upload them onto our back office.

I estimate these to be about 1,000 images as some businesses won't have images good enough.

We also need someone to find out the business' twitter feed and fb page and upload those on the back office too.