Tīdunghēap oððe Nytnett tīdunghēap is repository, oftoste in þære Usenet (Nyttnett) bysne, þæron mōt manig nyttere in manigum stedum settan ǣrendgewritas. Būtan hiera nama sindon tīdunghēapas mæðelcwidehēapas, and hie nearon þe hie swutelan tīdunge. Tīdunghēapas sind in heira geweorcum ānlīpe of mæðelcwidegemōtum on þæm Woruldwīdum Webbe oððæt ðe hie sind angelic in fremminge. Man benytteþ tīdungrǣdere software to rǣdenne tīdunghēapas.
Beforan þe manig menn afangen þone Woruldwīd Webb, wæron Nytnett tīdunghēap onmang þæm mǣstum folclicum betwuhnett þegnung, and hie habbað abidden gemāna būton cēapung þan weard se wīdora webb mid cēapmanna gewrirum full. In ūre gearum, hæfþ swylc open mæðelcwide on þæm Genette gelōsen miclan landscipe to individually-operated browser-accessible mōtstedum and micel midwistnettgeweorcum, to bysene Facebook and Twitter.