Price comparison website Moneysupermarket.com enjoyed a solid first quarter, returning to revenue growth, and remains confident for the full year.Internet revenue rose by 6% in the quarter to 31 March, despite a 4% fall in visitors on the year after a slow January across the entire business.Revenue from the group's money division climbed 7% on the year, after increased sales of credit-related products. Chief executive officer Peter Plumb said, "We are now beginning to see the impact of the work we commenced in the second half of 2009 when we invested in both our product offering and our marketing."Sales of other banking products fell however, in particular savings, with interest rates remaining ultra low. Sales in travel products fell 18% while sales of insurance products rose 10%.Plumb added, "Customers are now enjoying a much better service and we are achieving even greater break through in a crowded media space. We will continue with this balanced investment approach in the first half, to maintain growth through the rest of the year."