Model a spider making a spider web using blender

Two really great blender tutorials exist:
Creating a Spider - part 01 | Blender Cookie - three part series on making the spider in blender.
Tutorial: Creating a Spider Web | BlenderNation - three part series on making the spider web manually using blender.

Modeling and Topology type stufff

Got Wires? - A Subdivision Modeling Blog
Learning Mesh Topology Collection - Blender Cookie
Polycount - Polycount Wiki
Articulation Home Page