The paid-for service, called Clippings.me Professional, costs $8 (around £5) a month and lets you host your journalism portfolio at a custom domain, plus provides analytics such as social sharing data.
Clippings.me was previously known as Cuttings.me and was launched by a freelance journalist who recognised the need for freelancers to have an easy way of creating and sharing a portfolio of their best work.
The site was created by Nicholas Holmes in 2011 and lets journalists add a link or upload a PDF of work.
The paid-for option allows journalists to host the portfolio at a custom domain (such as www.yourname.com) and see how many times each article included in the portfolio has been shared on various social networks and how many websites have linked to that content. There are also analytics to show how many times your portfolio has been viewed.
Holmes told Journalism.co.uk that Clippings.me Professional, which launched today, is aimed at jobseekers and students. He started the portfolio service with freelancers in mind but said it is now widely used by students at journalism schools around the world, bloggers, writers and copywriters as well as both staffers and freelance journalists.
Holmes said that the basic service "will remain free and will continue to offer leading features such as multimedia embeds, RSS feeds and PDF uploads". Users of the free service can get a Clippings.me domain which includes their name (such as www.clippings.me/sarahmarshall).
He also said that a user's details will never be shared with PRs without permission. Holmes has a separate PR site, MediaGraph, which is aimed at small businesses.
There is "a very clear distinction" between the two sites, Holmes said. Clippings.me users can choose to receive press releases and can do so via "a very well marked tab to opt in – it's opt in and not opt out", he added.
Users can specify a different email address if they wish to receive releases, such as providing a work email address rather than sharing personal details with PRs.
Holmes said the pro service has been created with reference to feedback from users. In a release he said: "It is the first step in a long-term plan for closer integration with social media that will keep Clippings.me portfolios in sync with the type of content being produced by today's writers."
The release adds that Clippings.me Professional "provides in-depth statistics to help content creators better understand the social reach of articles they write and the publications that they appear in".
Clippings.me launched as Cuttings.me, changing its name at the beginning of the year. Users can currently use either site but the Cuttings.me users may be migrated to Clippings.me in the future.