The only reason vampires would be on the internet is to educate themselves on modern issues. Although some evil vampires do use the internet to prey upon innocent young people seduced by the lure of the dark eternal plight of being a living dead creature. Perhaps some site where the hot, hip, and happening teens hang out is the place to find the living dead on the internet.
As for turning you there’s a very slim chance of that happening because vampires rarely bring someone across into their secretive shadows. They have to see something very special within the person to warrant their immortal existence. If you’re worthy you won’t have to seek out vampires because one will eventually find you.