XING is a social software platform for enabling a small-world network for professionals. The company claims that it is used by people from over 200 countries.
Pinterest is a pinboard-style photo-sharing website that allows users to create and manage theme-based image collections such as events, interests, and hobbies.
Twitter is an online social networking and microblogging service that enables users to send and read "tweets", which are text messages limited to 140 characters.
With over 1 billion users Facebook is the largest social network worldwide.
250 million+ members. Manage your professional identity. Build and engage with your professional network. Access knowledge, insights and opportunities.
StumbleUpon is the easiest way to find cool new websites, videos, photos and images from across the Web. We make the best recommendations just for you.