Bully for Amazon ( AMZN).The Internet retailer posted a 24% jump in first-quarter earnings to $177 million, or 41 cents a share, compared with $143 million, or 34 cents a share, in the same quarter of 2008. Nice to see consumers still shelling out for electronics -- global sales rose 38% in that category, which includes other general merchandise. Sales of books, CDs and DVDs are gaining at a somewhat slower 7% pace, but gaining nonetheless. Consumers in North America -- where the company generates a little more than half its revenue -- seemed especially eager to make purchases online, with a 21% increase in sales for the U.S. and Canada. Sales in the U.K., Germany, France and China gained 15%. You may recall that big box rival Best Buy ( BBY) is still struggling and posted a decline in earnings to $570 million, or $1.35 a share, for the fiscal quarter that ended Feb. 28, compared with $737 million or $1.71 a share, the year before. Among Web peers, Yahoo! ( YHOO) saw first-quarter net income drop almost 80% to $118 million, or 8 cents a share, from $537 million, or 11 cents a share. Google's ( GOOG) profit looked good on the surface, with earnings of $1.42 billion, or $4.49 per share in the first quarter, compared with $1.31 billion, or $4.12 per share, the year before. But it's hard to get excited when most of the improvement came from cost cutting instead of growth, as demonstrated by the drop in net revenue to $4.07 billion from $4.08 billion.