Best site to get referrals online.Post in the forums of GTP sites.
Tell your friends and family members and neighbours.
Guild peoples living in your area and online friends(on skype,msn etc).
You can advertise your referral links with Pay Per Click Advertising.
Put a flyer up at work.
Write a posts in blogs and share them.
Visit your neighbour's houses and give them full details of making money online.
While walking through parking lots putting flyers on cars.
Make your referral links as your Sign. on all forum and also give some details.
Find online free chat rooms and groups that are aimed at "Easy Money Making" (share your links on these chats).
Write a classified ads.
Talk to students at high schools and colleges and tell them how they can start their working on these free sites.
Advertise while you drive with flags, stylish bumper stickers,poster etc.
Make some vedio's and share them on Youtube, Dailymotion etc.
Post your link at the end of vedio's.
Attach a .txt in an RAR file with that you can upload with your referral link and post your link on other blog.
Send out flyers in a mailing list 4 PTC Referral Secrets and earning ways.
Get a bot to post your link with a simple explanation on any server
you may be hosting/running
Make a free website and promot them.
Tell people through IM/PM
Share links on dofallow link blog and sites.
Advertise on on-line games.
Buy "paid to sign up" at other get paid sites.
Buy banner space.
Buy text links on blogs/forums/groups and websites.
Offer cash or other incentives for sign-ups.
Give your links on Free Traffic Exchange sites.
Hold up a sign on a street corner just like a car wash.
Give your links on Paid traffic exchange sites.
Google Adwords (Advertise on google adword).
Share your link on social media sites like fb/twitter etc.
Go door-to-door and tell peoples how to work on these sites.
Put up an advertisement with the details“free money”.
Give your link on other page and group in facebook.
Put up an advertisement that says “free money”.
Make a page on facebook.
Make email circle and share send your referral link through emails.
Advertise through radio and tv channels.
Text your link to all your friends/family.
Road-side signs & banners
Optimize your website for excellent to get high ranking in search engines.
Put a cheap ad in your local penny saver or thrifty nickel in the help wanted
or employment section
Put an E-book up for auction on Ebay with your blog or other website info
Send email to all your contacts, and tell them to join with your referral link on online earning sites.
Use the dot.tk so you can change your referral link completely.
Make a sign to put on a row of shared mailboxes
Build a huge friends list and dedicate the profile to your blog or website.
Tell them if they sign up, and use the forums, they can see a dancing banana!
Place business cards with your referral links in shopping carts etc.
Place your referral link on counterstrike.
Make a tag to your link or your blog.
Set your in-game username to a shortened link or your referral link.
Get a rubber stamp and stamp your ref. link or website on envelopes that you use to mail bills.
Offer to help find their first referrals after signing up under you.
Cross-link your websites/blogs/articles/posts and classified ads.
Write an article.
Paint your referral link on the street
"Brand" yourself with a familiar name on forums, articles, etc.