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On CNBC's "Fast Money," Sena said that Google appears poised to gain traction in the coming months.
"At this point, I think there's a lot of excitement still around Google in terms of all the products that they are doing, and we're really looking more to second-half estimates, when Enhanced Campaigns will start to kick in," he said.
Sena held an "overweight" rating on Google, with a price target of $1,050 per share.
Facebook stock, he added, held promise over the longer-term.
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"I'm really excited about a lot of the things that underlie Facebook," he said, adding that, "As we look at estimates, we're still a little bit nervous there."
Sena held an "equal weight" rating on shares of Facebook, with a $26 price target.
Facebook stock closed at $26.13, up 0.33 percent.
— By CNBC's Bruno J. Navarro. Follow him on Twitter @Bruno_J_Navarro.
— CNBC's Michael Newberg contributed to this article.
Trader disclosure: On July 23, 2013, the following stocks and commodities mentioned or intended to be mentioned on CNBC's "Fast Money" were owned by the "Fast Money" traders: Tim Seymour is long BAC; Tim Seymour is long SBUX; Tim Seymour is long UTX; Tim Seymour is long BA; Anthony Scaramucci is long BAC; Anthony Scaramucci is long C; Anthony Scaramucci is long GS; Anthony Scaramucci is long CSCO; Anthony Scaramucci is long YHOO; Anthony Scaramucci is long GOOG; Anthony Scaramucci is long AMZN; Karen Finerman is long AAPL; Karen Finerman is long BAC; Karen Finerman is long C; Karen Finerman is long JPM; Karen Finerman is long GOOG; Karen Finerman is long M; Karen Finerman is long TGT; Karen Finerman is long MW; Karen Finerman is long MDY PUTS ; Guy Adami is long C; Guy Adami is long GS; Guy Adami is long INTC; Guy Adami is long MSFT; Guy Adami is long AGU; Guy Adami is long NUE; Guy Adami is long BTU; Guy Adami's wife, Linda Snow, works at Merck; Ken Sena is long YHOO ; Ken Sena is long GOOG ; Ken Sena is long FB.