Joining organizations which are against animal cruelty is a good way to help the cause and improve the welfare of animals. However, there are some things you should think about before you join, such as:

Some animal cruelty activist groups and organizations are more reputable than others, so it's important to choose the right one. Although groups such as PETA are very high profile, they also face a lot of backlash for the way that they carry out their protests and this could be something that you may not want to be involved with.

Animal rights organizations exist in order to improve the rights and welfare of animals, but different groups will approach this goal in different ways. It's important to understand the agendas of animal rights groups in order to determine which methods and causes align to your personal beliefs.