The network spread by a spider to catch its prey.

A snare of insidious meshes designed to catch the ignorant and unwary.

a dense elaborate spider web that is more efficient than the orb web

The Cobweb is a comic book heroine co-created by famed writer Alan Moore and veteran underground artist Melinda Gebbie. Cobweb's only apparent powers were allure and the ability to make an entrance. These were usually enough.

A Web page that hasn't been updated in a long time, as in Don't bother visiting Rip Van Winkle's home page -- it's a real CobWeb. Source: Lingowatch

That which is thin and unsubstantial, or flimsy and worthless; rubbish.

The European spotted flycatcher.

COBWEB is a well-known incremental system for hierarchical conceptual clustering.

filaments from a cobweb

a WWW site that never changes