YahooPersonals

Try Icebreakers: free one-time messages that any ad poster can send to another to let him or her know they're interested. Recipients also have the ability to respond with a free one-time reply.

Here's how easy it is: 

Post an ad with a photo or two
 
When you see an ad you like, click on the "Break the Ice" button 

Choose a message that matches your mood

YahooPersonals will forward the Icebreaker - along with your ad snapshot

Icebreakers are most successful for ads with photos

You'll find thousands of new members each month. Free Profile and Free Browsing. 1, 3, and 12 month paid memberships. Post a free personal ad. You can post up to five photos. 

Options: Searchable - ad will appear in search results so eligible singles can contact you. Not Searchable - ad will not appear in search results, but you can attach it when you reply to other ads.