10. An apparatus for providing information to a client computer, comprising: a hardware processor; and a memory having one or more programs stored thereon for instructing said hardware processor to: acquire a current hotspot event; determine a first keyword that reflects one or more features of the current hotspot event; receive, from the client computer, a search term inputted in an input box on a user interface of a search engine displayed on the client computer; determine that the search term is correlated with the first keyword; determine a second keyword matched with the first keyword in a first database, the second keyword reflecting one or more features of an advertisement, the second and the first keywords being matched by including a same person name, a same geographic location, a same product functionality, or a combination thereof; determine current information materials of the advertisement; generate hotspot information materials according to the current information materials and the first keyword; acquire at least one of a sensitivity screening threshold and an online mode; make the hotspot information materials available online according to the at least one of the sensitivity screening threshold and the online mode; and send the hotspot information materials to the client computer, wherein the client computer displays search results associated with the search term on the user interface, and wherein the search results include the hotspot information materials.
10. An apparatus for providing information to a client computer, comprising: a hardware processor; and a memory having one or more programs stored thereon for instructing said hardware processor to: acquire a current hotspot event; determine a first keyword that reflects one or more features of the current hotspot event; receive, from the client computer, a search term inputted in an input box on a user interface of a search engine displayed on the client computer; determine that the search term is correlated with the first keyword; determine a second keyword matched with the first keyword in a first database, the second keyword reflecting one or more features of an advertisement, the second and the first keywords being matched by including a same person name, a same geographic location, a same product functionality, or a combination thereof; determine current information materials of the advertisement; generate hotspot information materials according to the current information materials and the first keyword; acquire at least one of a sensitivity screening threshold and an online mode; make the hotspot information materials available online according to the at least one of the sensitivity screening threshold and the online mode; and send the hotspot information materials to the client computer, wherein the client computer displays search results associated with the search term on the user interface, and wherein the search results include the hotspot information materials. 12. The apparatus of claim 10 , wherein said hardware processor is configured for determining a sensitivity of the current hotspot event and making the hotspot information materials online based upon whether the sensitivity of the current hotspot event satisfies the sensitivity screening threshold.