Nevertheless, the duties of digital librarians can also be viewed from different perspective. This may mean the same as roles expected of them in achieving open access to knowledge. For instance, Sreenivasulu, (2000) says that the digital librarian is a guardian of the information superhighway and acts as "a symbiotic human-machine guru". Breaks (2005) report that digital librarians will among other things believe in themselves, learn from each other to develop, find out what they can offer and never take their existence for granted. But Suber (2004) and Bailey (2007) agree that the role of a digital librarian in open access to knowledge is more than having ICT skills. Their works suggest that the role of a digital librarian in open access to knowledge can be accomplished through two complementary strategies. One is "self archiving" and the other is "open access journal".