Participants hone technical skills in choosing to navigate through social networking services. They met through the online social networking website Facebook. Recipe exchanging is an opportunity for networking and social interaction. Flixster developed applications for several social networking sites. Cyberbullying has become an issue of concern with social networking services. The Nokia Cseries is an affordable series optimized for social networking and sharing. Web development has also impacted personal networking and marketing. Among Obvious Corporation's projects was Twitter, a popular, free social networking and micro-blogging service. She first gained recognition for her active presence on social networking websites. It was the first game Facebook introduced on its social networking platform. Some uses of RDF include research into social networking. Other functions games, reference, GPS navigation, social networking, etc. It has no networking or Internet support. The iBook was the first mainstream computer designed and sold with integrated wireless networking. Space is another characteristic of wireless networking.