Link bait is any content or feature, within a website, designed specifically to gain attention or encourage others to link to the website. Matt Cutts defines link bait as anything "interesting enough to catch people's attention." Link bait can be an extremely powerful form of marketing as it is viral in nature. The term often has a negative or dismissive connotation. The content for link baiting would be a text, image, audio or video clip and it interesting enough to catch the people’s attention.
With link baiting the titles are very important. You have to get people attention and the titles of a post are the easiest way to grab peoples attention. If you can get a persons attention they will check out your link and what your link leads to.
Link Baiting used to be very popular with adult marketing.
A lot of people don't even begin to realize how important a title is. Do any and everything you can to get people to click that link and visit your site.