Deluxe Corporation, which provides customer loyalty and retention programs and other marketing services as well as promotional products and printed items to small businesses and financial institutions, has announced two acquisitions intended to expand its small business Web services customer base. Deluxe's Hostopia unit has signed a definitive agreement to purchase certain assets of Aplus.net and completed the purchase of search engine marketing firm MerchEngines. Deluxe will pay approximately $30 million for these companies.