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If you follow the right investors on Twitter, you can gain a lot of insight into how they think, the types of startups they find most interesting, and markets that are ripe for disruption.

PeekAnalytics, a social media analytics company, .

PeekAnalytics did this using its PullQuotient metric.

“Influence, for the purposes of this calculation, is gauged by how well connected someone’s Twitter followers are not just on Twitter, but across sixty social sites, compared to the average consumer,” the description on PeekAnalytics reads.

Note: PeekAnalytics last updated the list in February 2013.

AP

20. Dick Costolo

Firm: Angel investor

Twitter:

Pull: 900x

Followers: 1,018,589

Average Network Size: 1,272

Lachlan Hardy

19. Fred Wilson

Firm: Union Square Ventures

Twitter: @

Pull: 906x

Followers: 413,986

Average Network Size: 1,928

18. Om Malik

Firm: True Ventures

Twitter:

Pull: 1,065x

Followers: 1,315,494

Average Network Size: 1,170

LinkedIn/Screenshot

17. Richard Simmonds

Firm: Angel Investor

Twitter:

Pull: 1,066x

Followers: 132,849

Average Network Size: 6,287

Jeff Kubina

16. Tim Ferris

Firm: Angel Investor

Twitter:

Pull: 1,083x

Followers: 413,986

Average Network Size: 1,251

Chris Sacca

15. Chris Sacca

Firm: Lowercase Capital

Twitter:

Pull: 1,089x

Followers: 1,401,888

Average Network Size: 1,037

Related:

14. Jeff Pulver

Firm: Hafooch Investments

Twitter:

Pull: 1,101x

Followers: 492,648

Average Network Size: 2,377

13. Jason Calacanis

Firm: Angel Investor

Twitter:

Pull: 1,173x

Followers: 154,193

Average Network Size: 3,093

Business Insider / Matthew Lynley

12. Mark Cuban

Firm: Angel Investor

Twitter:

Pull: 1,466x

Followers: 1,303,074

Average Network Size: 685

Guardian

11. Tim O’Reilly

Firm: O’Reilly AlphaTech Ventures

Twitter:

Pull: 1,496x

Followers: 1,625,326

Average Network Size: 1,051

10. Gary Vaynerchuk

Firm: Angel Investor

Twitter:

Pull: 1,572x

Followers: 985,812

Average Network Size: 1,402

Related:

9. Kevin Rose

Firm: Google Ventures

Twitter:

Pull: 1,635x

Followers: 1,381,642

Average Network Size: 1,033

Current TV

8. Al Gore

Firm: Generation Investment Management

Twitter:

Pull: 1,779x

Followers: 2,529,

Average Network Size: 646

Parabolic Ventures

7. Jonah Lupton

Firm: Parabolic Ventures

Twitter:

Pull: 1,805x

Followers: 595,152

Average Network Size: 938

6. Evan Williams

Firm: The Obvious Corporation

Twitter: @

Pull: 1,932x

Followers: 1,620,217

Average Network Size: 1,073

5. Biz Stone

Firm: The Obvious Corporation

Twitter:

Pull: 2,139x

Followers: 1,984,595

Average Network Size: 1,115

Related:

Vivian Giang / Business Insider

4. Jack Dorsey

Firm: Angel investor

Twitter:

Pull: 2,139x

Followers: 2,311,789

Average Network Size: 643

richardbranson via YouTube

3. Richard Branson

Firm: Virgin Investments

Twitter:

Pull: 2,567x

Followers: 2,571,412

Average Network Size: 643

Idea Champions

2. Guy Kawasaki

Firm: Garage Technology Ventures

Twitter:

Pull: 2,867x

Followers: 1,288,913

Average Network Size: 2,294

1. Ashton Kutcher

Firm: Angel Investor

Twitter:

Pull: 4,697x

Followers: 14,256,594

Average Network Size: 356