Download the Picasa 3 for Linux beta at http://picasa.google.com/linux/. To get additional support for Picasa for Linux, please visit our Picasa for Linux FAQ or our Picasa for Linux Help Forum to find answers from our most knowledgeable users.
The new features of picasa 3.0 for linux user .
features 1.:
Sync your Picasa 3 and Picasa Web Albums edits:good news for who hate to re-upload your photos after making further edits , this feature is for you, when you enabling 'Sync to Web,' edits made to your photos in Picasa 3 are automatically transferred to your corresponding online albums.
You can sync the following changes:
1.Picasa 3 edits (Basic Fixes, Tuning, and Effects)
2.Photos added or deleted in Picasa 3
3.Captions, tags, or geotags
GETTING STARTED:
The Sync to Web button
located on the right side of each folder of your album ,when you click this button you will be first prompted to upload the pictures in to the folder or album to Picasa Web Albums. you can change the upload size , album size, album privacy setting , or even you can add watermark to your uploaded pictures. when its done. its automatically uploaded to your online picasa web album.
features 2.:
Retouch your images: To improve you pictures quality and remove the blemishes use the Retouch tools of picasa software.Its help you to improve your pictures quality of your choices .features 3.:
You can easily personalize your photos using the Watermark and Text tools.Watermarks
Help protect your images by stamping a watermark on all images that you export or upload. The watermark signature will be placed in the lower right-hand corner.
Use the Text tool to add text quickly and easily to your photographs; you can even print the result. You can edit the style, size, color, and alignment of the text, as well as drag it to your desired location on the photo.
When editing a photo, click the Text button on the 'Basic Fixes' tab to access the tool. Do you want to add the same text to multiple photos? From the main Library view, click the Edit menu and select Copy Text to copy the text you've placed on one photo. Then select Paste text to apply it to all other selected photos.
features 4.you can print you captions on or below of images .

features 5.:
Use the Drop Box to hold quick uploads and upload throttling to multi-task during your upload.
Drop-box upload
The Drop Box is an online album that serves as a holding pen for your quick uploads. Click the Upload to your Web Albums DropBox button located above your photo on the 'Edit Photo' screen to upload a single picture directly to your Picasa Web Albums Drop Box.
Upload throttling
You can choose to have Picasa 3 reserve some of your Internet bandwidth for surfing the Web while you're doing large uploads to Picasa Web Albums. During your upload, the dialog box will have an option labeled 'Don't eat all my bandwidth.' Just select this checkbox, and then continue multi-tasking.