Update Roundup: invites, searches, and wiki VoIP

• MyPunchBowl adds themes, public events. The invitation service we've been keeping an eye on since its January launch has updated with several user-requested features (75, according to its blog). One of the new additions is themed invitations, a feature we asked for in our original hands-onMyPunchBowl review. Also new is the option to create public events, so people can share a party's URL instead of requiring the host to manually go in and send out invites. Our favorite theme? Pretzel Day.

• Clipmarks gets searchy with ClipSearch. Clipmarks, the Web bookmarking service, has added a search engine to its service called ClipSearch. The new tool searches through user-submitted Clipmarks content to pull up results. Users can also add tags to their bookmarked items to help the engine out. Read our Clipmarks hands-on review for more information.

• PBwiki integrates Yackpack. PBwiki, The popular wiki service, is adding Yackpack's walkie-talkie widget to user wiki pages. The goal is to make it easier to communicate with wiki contributors and visitors. We covered the widget last month, and it's a really simple solution for adding instant voice chat to a blog or social networking profile. Related: Wetpaint adds private messaging to Wiki service.

• Quintura adds results from Blinkx. Quintura, the cloud-tag enabled search engine, has partnered with Blinkx, the video search service, to bring Blinkx results to all Quintura searches. Interestingly enough, Quintura hasn't chosen to replace its own video search tool with Blinkx's, as there's still a video search option next to the new Blinkx tab.