Sector Snap: Major Web stocks mostly rise

Amazon shares rose $2.05 to $83.75.

In a client note, Goldman analyst James Mitchell said that he models the company as doubling its sales in three to four years, noting, among other supporting factors, that its share of the e-commerce market could "effectively double" over several years.

Mitchell rates the stock "Buy" with a $98 six-month price target.

Shares of online auctioneer eBay Inc. rose 11 cents to $28.76.

In a separate note, Goldman analyst Mitchell said that eBay's total listings for the period of April 1 through June 15 totaled 569.1 million, rising 20.4 percent year over year.

Mitchell said he expects eBay's year-over-year quarter-to-date growth rate to fluctuate in the second quarter "due to the potential for additional initiatives such as category-based pricing, promotions and the changing year-ago comparisons."

The analyst rates the stock "Buy" with a $38 price target.

Meanwhile, shares of Yahoo Inc. fell 50 cents to $23.04, while rival Google Inc.'s shares rose $1.39 to $574.20.

In a client note, UBS Investment Research analyst Heather Bellini said she continues to think that Microsoft Corp. will purchase all of Yahoo at some point.