As LinkedIn pulls the plug on the features that once made Rapportive such a popular extension, we analyzed the various similar extensions in the chrome store and how closely they fulfill the void that Rapportive has left :
Rapporto: One of the fastest dropins for Rapportive, the plugin almost emulates the original Rapportive functionality and matches the UI as well seamlessly. The chrome extension might not be exactly same as rapportive but it gets sufficiently close to fill the void. However, if you would to see some trusted names behind the product, then Rapporto might not be the way for you. Moreover, the future of Rapporto is not yet certain as its founders are yet to comment on the roadmap for the extension.
Vibe: We have been using Vibe before Rapportive as well but the current changes in Rapportive make it much more viable. Vibe is just not a gmail extension as it is available on a plenty of platforms including Mobile platforms(Android, iPhone etc). You can just hover over any email on any website and Vibe will bring up a nice looking widget presenting the information about the user. The UI is eye candy though it might not be as sleek as Rapportive’s. The application is free for personal use and you will need to contact their sales team if you wish to use the application for business purposes.
Ark Browser Plugin : Ark is a browser plugin which enables you to see contact information from not only gmail but yahoo, hotmail and AOL as well. The plugin goes quite close to the Rapportive in terms of UI and seems to have quite a lot of contacts indexed. The plugin is available on firefox as well if you are not a Chrome Junkie.
360social.me : 360social.me is an extremely robust browser plugin which presents the information quite similar to Rapportive did in its original role, the UI however is not as sleek as Rapportive. The extension is free to use but it comes with a professional plan as well for which they charge nominal subscription fees.We are sure that one of the above apps will replace your rapportive workflow. If you are already using some other plugin, we look forward to your comments.