I have a project for tourism marketing .i want to know advertising,publicity and use of media for marketing.?

[brandtorret.com]

There are tons of social media opportunities in that market. Check out some of these sites

tripadvisor.com - a social site that allows travelers to give each other advise about places to go and things to do for every destination under the sun. Use the site to talk about the tourism venue or destination you wish to promote.

igougo.com - accepts reviews from users of hotels and guesthouses and other accommodations.

virtualtourist.com - accepts reviews from users for hotels and offers many community oriented features and options for user generated content.

travbuddy.com - accepts user reviews of accommodations. The site also has other community features including blogs and forums. All of these features provide a great opportunity to interact with people interested in visiting the destination you're promoting.

boo.com - a user generated content site with destination guides and reviews of accommodations.

mytravelguide.com - this is another community oriented site for travel fans that has user generated content features.

You might also want to look at placement targeted advertising on travel sites such as
iexplore.com
lonelyplanet.com
destination360.com
nytimes.com (travel pages)
cnn.com (travel pages)
travbuddy.com
http://www.vamoose.com

Wedding sites would also be good for placement targeting since you'll hit people shopping for a honeymoon.