. The Menu menu 
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2. Pure CSS hover menu
3. Matte CSS Menu
4. CSS Blur Menu
5. CSS Navigation with Glowing Icons
6. CSS Sliding Door using only 1 image
7. Navigation Matrix Reloaded
8. CSS Horizontal Menu
9. Woody CSS Menu
10. Advanced CSS Menu
11. Simple Yellow Tabbed
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12. Vimeo-Like Top Navigation
13. Apple Like Colorful CSS Menu
14. CSS Hoverbox
15. Big CSS Box
16. Simple CSS-based drop-down menu
17. Two Level Horizontal Navigation in CSS
19. CSS-Only Accordion Effect
20. Tabbed Navigation Using CSS
21. CSS Mini Tabs (the UN-tab, tab)
22. Drop-Down Menus, Horizontal Style
23. List Into a Navigation Bar
24. CSS Tabs with Submenus
25. CSS Block Navigation Menu
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26. XHTML & CSS Sprite Navigation
27. XHTML CSS Tabbed Menu
28. Cool, Simple, Horizontal CSS Menu
29. CSS Menu with Descriptions
30. CSS Hover Button
Fonte: sixrevisions
Altre tecniche al seguente link:
http://www.alvit.de/css-showcase/css-navigation-t…