In a lively Q &A at last night’s WordPress for Business some additional plugins were discussed as possible solutions for specific issues raised by attendees. As promised, we have noted the names and urls of those WordPress Plugins below.
WordPress Donation Plugin with Goals and Paypal IPN
by NonprofitCMS.org
VaultPress – WordPress Backup and Security
I haven’t used any of the these plugins besides Jetpack on a client site in six years of developing. BackupBuddy and Gravity Forms would four of the plugins in the list by itself.
I like the WordPress.com Stats and CSS editor in Jetpack but I’m starting to lean away from that plugin now , too, because its bulkiness and likelihood to break other plugins.
Have to agree with (and expand upon) what Jason said.
I can’t really recommend any CAPTCHA solutions, as CAPTCHA is extremely inaccessible (even for non-disabled users); but if you need CAPTCHA, I would recommend using the ReCAPTCHA solution built into GravityForms (well worth the cost of the plugin).
VaultPress is built into JetPack now, as far as I know, so there is no need to install it separately (and, as Jason mentioned, BackupBuddy is a really good alternative, and has some amazing extra features built in for people working on WP Multisite).
Relevanssi is an amazing plugin, but it’s extremely resource-intensive. Be careful using that plugin on any sites that get more than a moderate amount of traffic. Still, short of implementing a Google CSE (which requires you to include ads if you’re not a non-profit – though there is probably some ridiculously expensive fee you can pay to get around that), Relevanssi is probably the best solution for search in WordPress.