CLIPPINGS Mega- Rolodex Viewers, listeners, pro- ducers and talk-show hosts who have long worried that Paganism, Social Nudity, Palmisti?y, Self Esteem, Pig Day and other issues will never be discussed on the air for lack of an instant expert, need fret no more. The 1986/87 Talk Show Guest Di- rectory of Experts, Authorities and Spokespe-rsom, published by Washington, D.C. editor Mitchell P. Davis, cross-in- dexes 3,355 topics in English and Spanish to 2,102 special- interest groups all over the country, from Student Ath- letes to Zero Population Growth; from AIDS, Aard- vark and Abortion to World 'Security, X-rated films, Yuppies and Zoological Parks. Thinking ahead to the political wars of 1988, the di- rectory (available in book form for $25, or as a set of 4,000 printed Rolodex cards for $165), notes that Alan Caruba, founder of the Bor- ing Institute of Maplewood, New jersey, which already has brought you the ?Most Bor- ing Celebrities? and ?Most Boring Film Awards,? plans to run for President?011 the Boring Party ticket. SUSAN HARLAN