Editing Snowball sampling (section)

===Advantages===
*In hard-to-reach and hard-to-involve populations online sampling can better detect individuals of researcher's interest and allows to expand geographical scope of the studies<ref name="Baltar">{{cite journal|last1=Baltar|first1=Fabiola|last2=Brunet|first2=Ignasi|title=Social research 2.0: virtual snowball sampling method using Facebook|journal=Internet Research|volume=22|issue=1|pages=55–74|doi=10.1108/10662241211199960|date=2012}}</ref>
*Brings the possibility to increase representativeness of the results<ref name="Baltar"/>
*Virtual sampling can increase the number of responses in comparison with traditional snowball sampling. According to Baltar (2012) who used [[Facebook]] to search for participants for his study and conduct the research, it was possible to reduce the time necessary for building trust between the participant and researcher. Participants were more likely to share their personal information because the researcher was also sharing personal information on his/her Facebook profile. Increased level of confidence contributed to higher response rate<ref name="Baltar"/>
*Less costly relative to traditional snowball sampling technique<ref name="Baltar"/>