Memes are basically just hilarious inside-jokes on the internet that are the only source of joy for some people. Without memes, they're lost. So don't be like them, and make sure you always have memes at the ready.
What is ACTA? It is a proposed international treaty called the 'Anti Counterfeit Trade Agreement', and it is being described as SOPA's bigger, meaner brother. What exactly ACTA will mean for the intertubes is a subject of debate, but it's a big deal! It would be a tool for censoring the interwebs from many countries, not just the USA. Here's a graph illustrating the potential dangers of ACTA