*Canaccord Genuity raises target price to $4 from $3.50; rating buy. Reuters Station users, click. 1568. Reuters Station users, click. 4899.
For parent eBay Inc, PayPal's expansion is crucial. The 13- year-old payment service accounts for about 40 percent of eBay's revenue and its growth is slowing.
SAN FRANCISCO, Jan 31- Facebook Inc introduced gift cards on Thursday that consumers can use at Target Corp and a handful of other businesses in the social network's latest move into the retail market.