Start.me isn't exactly new -- they have been around for a long time, but they have made a lot of quiet, behind the scenes changes that are great if you want a single, useful page you can set every new tab in all of your browsers to open to, on any computer or device you use.
The service has always offered customisable start pages, where you can add tiles and widgets for the things that matter to you -- things like local weather, news and RSS feeds, quick links to your favourite web sites and often-visited web pages, and so on. You can customise the background of your start page or leave it blank, create multiple start pages (like one you use when you're working, or at work computers, and another for home or leisure), tweak the layout to add or remove columns and widgets and name/rename virtually everything on the page. It's all stuff you would expect from a start page, or a new tab extension, without, obviously, having to install anything.
The service has been steadily growing since the death of iGoogle back in 2013. While there are tons of awesome tools to transform your new tab page in Chrome and in Firefox, Start.me works because you can access them in any browser, on any computer, using any operating system, and it all looks exactly the same -- just the way you left it.
Of course, the service isn't perfect. It's ad and affiliate link-supported, but the ads are easily ignored (or dismissed entirely by paying for a premium account to the tune of $US20 per year or a one-time $US45 fee.) You can check it out at the link below.