LINKS    popai.com POPAI is the Point of Purchase Industry Trade Association. Visit their website to see the latest trends is POP Advertising.    popshow.com The In-Store Marketing Institute exists to enhance the work lives and businesses of brand marketers, retailers and P-O-P producers through research studies, education and training, networking opportunities, publications and tradeshows designed to further the understanding acceptance and effectiveness of in-store marketing.    abmarketing.com Protected access for Anheuser-Busch wholesalers only.    tate.org.uk Tate gallery is the home of national collections of British art and international modern art. Under past exhibitions, you can view artist Paul McCarthy's 2003 outdoor inflatable sculptures of Blockhead and Daddies Bighead.    artforum.com You can view artist Paul McCarthy's June 28. 2005 huge inflatable bouquet of flowers on the roof of the Haus der Kunst in Munich, Germany as part of his Mad Cowboy exhibit.