But Web surfing on tablet computers is a different matter, creating an opportunity that Blekko hopes to exploit with a new product called Izik â¿¿ a search engine designed especially for Apple Inc.'s iPads and tablets running Google's Android software.Izik, whose name is a riff on 17th-century scientist Isaac Newton, debuted Friday with the release of free apps for the iPad and Android tablets. ___ PNC Bank taking steps to prevent cyber attacks NEW YORK (AP) â¿¿ PNC Bank has warned customers its websites are getting hit with high traffic consistent with computer attacks. In an email sent to nearly 5 million customers, PNC Bank says the traffic is meant to cause delays for legitimate online banking customers. It says other banks are experiencing similar traffic spikes but did not identify them. PNC Bank says that for several weeks it has worked to block the traffic and maintain online and mobile banking access for the vast majority of its customers. The company says it may have blocked access for a small percentage of its legitimate customers for an extended period. ___ Lilly 2013 profit forecast tops expectations INDIANAPOLIS (AP) â¿¿ Eli Lilly and Co. unveiled a better-than-expected 2013 earnings forecast Friday, in part because the pharmaceutical company expects growth from several established drugs to help make up for revenue lost to generic competition. The Indianapolis drug developer saw sales for its all-time best-selling drug, the antipsychotics Zyprexa, crater in 2012 after it lost U.S. patent protection. Lilly will take another hit next December when it loses patent protection for its current top seller, the antidepressant Cymbalta. But company executives told analysts Friday they still expect Cymbalta and another product that loses patent protection in 2013, the insulin Humalog, to help drive revenue growth along with products like the cancer treatment Alimta and the erectile dysfunction drug Cialis.