@article {Ismail:2011:1525-4011:5,
title = "Diigo and Digg",
journal = "The Charleston Advisor",
parent_itemid = "infobike://annurev/tca",
publishercode ="annurev",
year = "2011",
volume = "12",
number = "4",
publication date ="2011-04-01T00:00:00",
pages = "5-10",
itemtype = "ARTICLE",
issn = "1525-4011",
eissn = "1525-4003",
url = "https://annurev.publisher.ingentaconnect.com/content/annurev/tca/2011/00000012/00000004/art00004",
doi = "doi:10.5260/chara.12.4.5",
author = "Ismail, Lizah",
abstract = "Diigo and Digg are two popular social networking sites, each having unique features that set them apart from each other as well as from most other social sites. Diigo is known for its annotative features while Digg generates its content through its users. Diigo, however, has pricing
options for certain features while Digg, is free to all users.",
}