Key Takeaways NerdWallet's affiliate model, expanding content and user growth aid its long-term digital finance strategy.NRDS expanded reach via the Next Door Lending acquisition, data initiatives and international market growth.TREE is diversifying beyond mortgages and posting solid adjusted EBITDA growth.In the rapidly evolving world of digital finance, platforms that help consumers compare loans, credit cards and other financial products are battling for long-term dominance. Two prominent players — NerdW ...