How are the myriad components inside the cell connected together, enabling the cell to carry out its specific functions? In their Perspective, [Oltvai and BarabAisi][1] discuss two new studies ([Lee][2] et al ., [Milo][3] et al .) that investigate both biological networks of intracellular components and nonbiological networks such as the World Wide Web. They explain that all networks seem to be organized according to the same distinct principles. [1]: http://www.sciencemag.org/cgi/content/full/298/5594/763 [2]: http://www.sciencemag.org/cgi/content/short/298/5594/799 [3]: http://www.sciencemag.org/cgi/content/short/298/5594/824