AP Engines announced on Monday that it received a $30 million second round of funding, led by Thomas Weisel Capital Partners. Other investors included Lighthouse Capital Partners, Mentmore Venture Partners, Enron Broadband Services and previous investors Atlas Venture, Bessemer Venture Partners and Commonwealth Capital Ventures. The Maynard, MA.-based company has raised a total of $40 million. AP Engines plans to use the latest round to further develop its AP InterLink. The software accommodates current and planned services that use configurations for the Internet--from broadband data to video conferencing. The technology helps synchronize various databases. See complete list.