JFax.com Inc., an Internet messaging company based in Hollywood, said it plans to buy rival EFax.com Inc. for about $74 million in stock. The combined company will keep the JFax.com name. It will have more than 125,000 paid subscribers and about 2.8 million free users. JFax.com's services allow people to manage faxes, voicemail and e-mail through a single Internet mailbox. JFax.com shares rose 44 cents to $4.44, while Menlo Park, Calif.-based EFax.com closed up 16 cents at $4.59, both on Nasdaq.